Is Reballing a DEFINITIVE solution to LG G4's bootloop? - G4 Q&A, Help & Troubleshooting

I've heard it is.
But with it, 2 more questions arise, since i've seen people claiming it's the RAM problem, others saying it's the CPU. Nobody seems to agree on what's the actual problem.
So, I tried ironing the G4 over the RAM, around 230°C for 3 minutes, pressed on it a bit then let it cold. Proceeded to put folded aluminum and Artic MX-2 thermal compound so it would make pressure on it but also transfer heat okayish.
I've had random reboots but apart from that it's working.
So here is the thing, if i send it for a reballing of the RAM (obviously good lead solder) will it work with no problem? Or do i need to reball the CPU instead?
This because im not wasting any more money on this device only to fail again in a near future.
What do you guys think?

Its both. Ram sitting over CPU. CPU solders are actualmprobkem though....caused by poor soldering
Don't bother. The solders points are do tiny they use a computer not hand

deltadiesel said:
Its both. Ram sitting over CPU. CPU solders are actualmprobkem though....caused by poor soldering
Don't bother. The solders points are do tiny they use a computer not hand
Click to expand...
Click to collapse
So in theory reballing both CPU and RAM would solve it? Or is the CPU itself which doesnt work properly?
I know people who have the proper tools to work on small components, i just dont wanna spend on it if even after reballing both turn out the CPU is actually bad like on those nvidia 8800 GTX, which failed anyway after reballing, turning out the problem wasnt the solder but the actual GPU which killed itself.

lRaziel1 said:
So in theory reballing both CPU and RAM would solve it? Or is the CPU itself which doesnt work properly?
I know people who have the proper tools to work on small components, i just dont wanna spend on it if even after reballing both turn out the CPU is actually bad like on those nvidia 8800 GTX, which failed anyway after reballing, turning out the problem wasnt the solder but the actual GPU which killed itself.
Click to expand...
Click to collapse
The actual problem is to o components sitting on each other causing excessive heat. Its not a defective CPU or RAM chip. I've seen a video on YouTube where a guy places a thermal paste pad and never has issues again
I'm not isure if it us the actual solder points get screwed up because my device has never looped. You'd have to ask someone to show you pics after a bootloop. But then again if a person was able to fix it with a thermal pad I don't think its the solder points but rather putting something that dissapates the heat off the chips
You cannot mimic a solder point like this. Its too small. Expect to get no guarantee that the solder point will last
Anyone will tell u go get a board or another device. Only people that actually do small work like that are Chinese (not being racist) in my area atleast that have a lot of expierence in fixing electric components. They never guarantee their work though because the work they're asked to do they know they can't mimic a robot
For the money you spend trying to solder you can probably get a new board these days. Mine is a pre release. It has 2gb of ram instead of 3. So did it loop? I don't know. LG doesn't acknowledge it as a loop. They call it a power failure. Does it mean bootloop? Its possible. I'm kinda confused about my phone but I've never seen the axtuql bootloop. Just not being able to power the phone on. No one has a 2gb ram G4 like I do. Did they replace the ram? Beats me...but I can tell you no one else got a G4 with 2gb ram from LG back.
Sorry if I confused you but I meant its the heat and overlay of ram and CPU that causes the problem, whether it actually screwed up the solder points I'm not sure

deltadiesel said:
The actual problem is to o components sitting on each other causing excessive heat. Its not a defective CPU or RAM chip. I've seen a video on YouTube where a guy places a thermal paste pad and never has issues again
I'm not isure if it us the actual solder points get screwed up because my device has never looped. You'd have to ask someone to show you pics after a bootloop. But then again if a person was able to fix it with a thermal pad I don't think its the solder points but rather putting something that dissapates the heat off the chips
You cannot mimic a solder point like this. Its too small. Expect to get no guarantee that the solder point will last
Anyone will tell u go get a board or another device. Only people that actually do small work like that are Chinese (not being racist) in my area atleast that have a lot of expierence in fixing electric components. They never guarantee their work though because the work they're asked to do they know they can't mimic a robot
For the money you spend trying to solder you can probably get a new board these days. Mine is a pre release. It has 2gb of ram instead of 3. So did it loop? I don't know. LG doesn't acknowledge it as a loop. They call it a power failure. Does it mean bootloop? Its possible. I'm kinda confused about my phone. No one has a 2gb ram G4 like I do. Did they replace the ram? Beats me...but I can tell you no one else got a G4 with 2gb ram from LG back.
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Click to collapse
I've seen these small components get their solder balls replaced, it requieres skills but it can be done and as i've seen it thats why im confident on it. But yes im aware it could also go wrong.
I've been thinking and im also guessing it could be flexion damage, like the iphone 6. As the G4 is curved, perhaps a motherbaord screwed too tight, combined with use and heat could be the cause of it bootlooping, hence why it sometimes works again by putting pressure on it.
Actually i made some kind of small 'heatsink' out of folded aluminum foil, compressed it while heating it @ 200°C to get air bubbles out, and used thermal compound so that thingy both makes pressure on to the chip and disipates heat. Worked fine for 4 days then its back to bootloop again.
Thats one odd G4 you got there. I wouldnt mind at all having even 1 GB of RAM if that ment the device is working properly.
You are making me realise im better off buying a new board then putting in those mini cooper heatsinks.
tbh im struggling right now with moneyz so its fixing this, or buying a screen for either my Xperia Arc S (which is slow af thanks to google play services, but cant use any app without them) or for my Moto X 2013 (which looses phone signal when it gets hot until you reboot, also NFC chip doesnt work).
Repairing any of those would cost me something similar so i guess im better off with a new board. You know any trusted seller on ebay?
And thanks a lot for the help :highfive:

I guess by seeing videos they always heat the CPU and the solder points start working again
My phone and ram is just a mystery.
Because they're both right there.... Maybe either one can go. But I always see the CPU getting heated.
I love how none of the videos tell you or show you how easy it is to melt the chip using a blow dryer. Lol
---------- Post added at 05:16 AM ---------- Previous post was at 05:10 AM ----------
lRaziel1 said:
I've seen these small components get their solder balls replaced, it requieres skills but it can be done and as i've seen it thats why im confident on it. But yes im aware it could also go wrong.
I've been thinking and im also guessing it could be flexion damage, like the iphone 6. As the G4 is curved, perhaps a motherbaord screwed too tight, combined with use and heat could be the cause of it bootlooping, hence why it sometimes works again by putting pressure on it.
Actually i made some kind of small 'heatsink' out of folded aluminum foil, compressed it while heating it @ 200°C to get air bubbles out, and used thermal compound so that thingy both makes pressure on to the chip and disipates heat. Worked fine for 4 days then its back to bootloop again.
Thats one odd G4 you got there. I wouldnt mind at all having even 1 GB of RAM if that ment the device is working properly.
You are making me realise im better off buying a new board then putting in those mini cooper heatsinks.
tbh im struggling right now with moneyz so its fixing this, or buying a screen for either my Xperia Arc S (which is slow af thanks to google play services, but cant use any app without them) or for my Moto X 2013 (which looses phone signal when it gets hot until you reboot, also NFC chip doesnt work).
Repairing any of those would cost me something similar so i guess im better off with a new board. You know any trusted seller on ebay?
And thanks a lot for the help :highfive:
Click to expand...
Click to collapse
Alibaba or aliexpress or eBay. I'd ask the seller for serial boars number. You know its likely good if it starts with a 6. Even better with a 7. If your lucky you'll find one with a 4 like mine....
810 board with 811 T-Mobile software. Takes custom Roma that are aosp based but not lg based....which doesn't matter anymore because lg based ROMs are lollipop based and were at Oreo now.
I don't really have problems with having 1gb ram leas. But occassionaly my phone will become sluggish if I open like 30 things

deltadiesel said:
I guess by seeing videos they always heat the CPU and the solder points start working again
My phone and ram is just a mystery.
Because they're both right there.... Maybe either one can go. But I always see the CPU getting heated.
I love how none of the videos tell you or show you how easy it is to melt the chip using a blow dryer. Lol
---------- Post added at 05:16 AM ---------- Previous post was at 05:10 AM ----------
Alibaba or aliexpress or eBay. I'd ask the seller for serial boars number. You know its likely good if it starts with a 6. Even better with a 7. If your lucky you'll find one with a 4 like mine....
810 board with 811 T-Mobile software. Takes custom Roma that are aosp based but not lg based....which doesn't matter anymore because lg based ROMs are lollipop based and were at Oreo now.
I don't really have problems with having 1gb ram leas. But occassionaly my phone will become sluggish if I open like 30 things
Click to expand...
Click to collapse
They gave me Toshiba ram instead of Samsung ram I dont know

deltadiesel said:
They gave me Toshiba ram instead of Samsung ram I dont know
Click to expand...
Click to collapse
Heres mine
Also i'd like to keep all my camera's capabilities so no custom ROM for me.
But yeah i went to some sellers and asked about their motherboards serial number and see if at least i can get a 60X
Seems like the only way to get a working phone.

lRaziel1 said:
Heres mine
View attachment 4731105
Also i'd like to keep all my camera's capabilities so no custom ROM for me.
But yeah i went to some sellers and asked about their motherboards serial number and see if at least i can get a 60X
Seems like the only way to get a working phone.
Click to expand...
Click to collapse
Some camera apps are pretty good much better than the stock google camera...users have discussed options in AOSCP thread. But yeah u won't get raw capture with them
Don't bother with serial number starting with 5 they're older motherboards...5 being 2015...when they first came out. 6 2016 7 2017
I can't stand lg stick software its so ugly would of never bought phone if it didn't gave ROMs.
I have two extended batteries and wall charger so I swap out batteries instead if using USB charger...if it wasn't for thus I'd likely be using another phone

deltadiesel said:
Some camera apps are pretty good much better than the stock google camera...users have discussed options in AOSCP thread. But yeah u won't get raw capture with them
Don't bother with serial number starting with 5 they're older motherboards...5 being 2015...when they first came out. 6 2016 7 2017
I can't stand lg stick software its so ugly would of never bought phone if it didn't gave ROMs.
I have two extended batteries and wall charger so I swap out batteries instead if using USB charger...if it wasn't for thus I'd likely be using another phone
Click to expand...
Click to collapse
mine is a 509 so yeah i wont pick those.
I mean with the G4 i use the stock LG camera app, not the google camera. LG Camera app on original signed firmware gives best quality imo. I have no problems with LG UI so ill keep it. And yes battery life is a pain but meh hehe, tbh my standars right now are so low that id forgive any flaw if i get a reliable working phone and not one that randomly restarts and bootloops-
So well yes i'll try with a new motherboard, preferably 70X and put a thermal pad on it right away. Thanks a lot for your time

lRaziel1 said:
mine is a 509 so yeah i wont pick those.
I mean with the G4 i use the stock LG camera app, not the google camera. LG Camera app on original signed firmware gives best quality imo. I have no problems with LG UI so ill keep it. And yes battery life is a pain but meh hehe, tbh my standars right now are so low that id forgive any flaw if i get a reliable working phone and not one that randomly restarts and bootloops-
So well yes i'll try with a new motherboard, preferably 70X and put a thermal pad on it right away. Thanks a lot for your time
Click to expand...
Click to collapse
Don't touch the new board
I get 27 hours on my extended batteries

deltadiesel said:
Don't touch the new board
I get 27 hours on my extended batteries
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Click to collapse
ok you got me at 27 hours lol
but why do you say i shouldnt touch the new board? if its bad thermals what cause the issue in the 1st place

lRaziel1 said:
ok you got me at 27 hours lol
but why do you say i shouldnt touch the new board? if its bad thermals what cause the issue in the 1st place
Click to expand...
Click to collapse
Stop focusing on what is wrong with old board and don't try and fix what isn't broken on new board.
Its a rule
Power bear 5000 mah battery

deltadiesel said:
Stop focusing on what is wrong with old board and don't try and fix what isn't broken on new board.
Its a rule
Power bear 5000 mah battery
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Click to collapse
fair enough, but its engineered in pretty much the same way inefficient way as they've been doing it since the G3 which also had this problems, so honestly with this phone im not taking any chances, ill just put a little thermal pad and thats all ill do.
that battery requires calibration or just plug n play?

lRaziel1 said:
fair enough, but its engineered in pretty much the same way inefficient way as they've been doing it since the G3 which also had this problems, so honestly with this phone im not taking any chances, ill just put a little thermal pad and thats all ill do.
that battery requires calibration or just plug n play?
Click to expand...
Click to collapse
Leave it alone lol
Calibrates after 5 charges

deltadiesel said:
Leave it alone lol
Calibrates after 5 charges
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Click to collapse
Was scrolling through my old posts and figured it may be interesting for you to know this.
I baked the SoC with an iron, worked fine for like 2 days, then bootlooped again.
I was broke so I sold it for spare parts rather than getting a new board.
Kinda regret it ngl, but man, battery life was absolutely terrible. Had to charge it AT LEAST, twice a day, and my Poco F3 could go on 3 days if I administered it well, and doesn't heat up.
As of right now, while I have a Poco F3 as mentioned, I have to daily drive an LG G3, for which I am also struggling because it's using Android 6 and some apps I need are not compatible, and I'm struggling to flash a ROM on the verizon version... just troubles over troubles with LG...
same ol', same ol'.

Related

[Q] HOLE in galaxy Tab S

PEOPLE ! Daf** happend with my tablet ?
Today in the morning i put my tablet charging and a few minutes ago, where i pick up this happend.
The tablet in on fire when i pick her up, i mean, i can´t hold it in my hands because of the heat.
what can i do now ? :crying::crying::crying::crying:
HugoSilva said:
PEOPLE ! Daf** happend with my tablet ?
Today in the morning i put my tablet charging and a few minutes ago, where i pick up this happend.
The tablet in on fire when i pick her up, i mean, i can´t hold it in my hands because of the heat.
what can i do now ? :crying::crying::crying::crying:
Click to expand...
Click to collapse
Ive never seen anything like this!? I dont know how your gonna explain it to samsung...
DUHAsianSKILLZ said:
Ive never seen anything like this!? I dont know how your gonna explain it to samsung...
Click to expand...
Click to collapse
i don´t know either. But its not my fault...
If it is not your fault, someone else is responsible. Such a damage does not occur without external force.
Best , maris
Does it still turn on? Where is the heat coming from, where it's cracked?
Sent from my SM-T805 using XDA Free mobile app
ashyx said:
Does it still turn on? Where is the heat coming from, where it's cracked?
Sent from my SM-T805 using XDA Free mobile app
Click to expand...
Click to collapse
she was on while charging, after i take off the charger the tablet still work 100% ( i guess), but i turned off because was too hot.
The heat was coming from the place where you put the charger. ( i guess was a factory error in the charger and was heat too much, i don´t know)
I´m afraid in the moment i get the tablet to samsung they say that was me that dropped to the ground and broke the screen.
Either the battery expanded and broke the panel or something related to the battery. Im not sure if samsung will replace that.. How old is this tablet?
I would make sure to add a note (hand written message) when returning it to Samsung that you have included the charger and the cable for them to test and I would tape a note to the back of the tablet so they can't say they didn't see it and take pictures of the note taped to the tablet.
If you were charging it with the factory charger and the cable as per the instructions I would fight them to the end for a replacement!
That hole is obviously made by external forces. If it was caused by heat or battery expansion it wouldn't look like that. Either you smashed something onto it or someone else did.
DUHAsianSKILLZ said:
Either the battery expanded and broke the panel or something related to the battery. Im not sure if samsung will replace that.. How old is this tablet?
Click to expand...
Click to collapse
3 months
snapper.fishes said:
That hole is obviously made by external forces. If it was caused by heat or battery expansion it wouldn't look like that. Either you smashed something onto it or someone else did.
Click to expand...
Click to collapse
You are wrong, the tablet was on my office when i put it on charge, then leave, nobody gets in the office ( i'm sure) and when i come back the tablet is like this...
flhthemi said:
I would make sure to add a note when returning it to Samsung that you have included the charger and the cable for them to test and I would tape a note to the back of the tablet so they can't say they didn't see it and take pictures of the note taped to the tablet.
If you were charging it with the factory charger and the cable as per the instructions I would fight them to the end for a replacement!
Click to expand...
Click to collapse
What do you mean with a note ?
Yes i was using the factory charger...
HugoSilva said:
You are wrong, the tablet was on my office when i put it on charge, then leave, nobody gets in the office ( i'm sure) and when i come back the tablet is like this...
Click to expand...
Click to collapse
If you are adamant that no one else could have man handled your tablet while you were out, the other possible explanation is that your tablet experienced some extreme temperature and had a pre existing weak point at that position (micro fractures can be invisible to the eye).
It is unlikely that your battery could have become hot enough to crack your screen without bursting into flames first, so the other extreme is more likely. Is there a chance that the ambient temperature of your office dropped to freezing or near freezing while you were away?
HugoSilva said:
What do you mean with a note ?
Yes i was using the factory charger...
Click to expand...
Click to collapse
A NOTE = A hand written message on a piece of paper for the tech to read at the repair facility.
snapper.fishes said:
If you are adamant that no one else could have man handled your tablet while you were out, the other possible explanation is that your tablet experienced some extreme temperature and had a pre existing weak point at that position (micro fractures can be invisible to the eye).
It is unlikely that your battery could have become hot enough to crack your screen without bursting into flames first, so the other extreme is more likely. Is there a chance that the ambient temperature of your office dropped to freezing or near freezing while you were away?
Click to expand...
Click to collapse
No one enter my office because i locked after leaving. And the temperature was always the same, ambient temperature. 10 to 15° celsius.
Most probable scenario is that someone physically damaged the unit since you did leave it unattended. Achems Razor will help cut to the truth.
Occam's Razor
But point well made. Pretty dang amazing damage. Almost looks like a small caliber bullet hole. Yikes! Hope the OP shares what eventually is the result.
HugoSilva said:
You are wrong, the tablet was on my office when i put it on charge, then leave, nobody gets in the office ( i'm sure) and when i come back the tablet is like this...
Click to expand...
Click to collapse
I'm interested in buying this tablet which is how I've ended up here (new to the community).
Having some experience with lithium-polymer batteries from hobbies of mine, my first thought was 'what type of battery does it have?' Li-Po batteries have a tendency to expand and potentially catch alight if 'gone dodgy' or over-charged. The Galaxy Tab S uses a Lithium-Ion battery which it turns out can have similar behaviour.
This could well explain the state of the tablet (and the heat). It might not have caught alight with a standard charger, or you got to it before it did. Either way, good thing you got to it when you did!
I can't post any external links yet as I'm still too new, but googling "Lithium Ion battery expansion" and "explosion" shows some examples of what can happen to these batteries (although I don't believe this to be very common).
This type of expansion force from inside the unit would most likely burst the screen and I can only imagine that being pretty nasty, and possibly the cause of the state that your tablet was in.
I trust that you got it replaced through your warranty without any quibble?!..
skeeterpro said:
Occam's Razor
But point well made. Pretty dang amazing damage. Almost looks like a small caliber bullet hole. Yikes! Hope the OP shares what eventually is the result.
Click to expand...
Click to collapse
Waiting for a reply from Samsun.
But maybe Samsung will not help me, then i will have to spend at least 200€ to put a new LCD. :crying::crying:
pissed off wife or childeren

LG G4 Overheating while charging and under basic browser load.

Hello everyone!
I just aquired this phone yesterday and so far, I am amazed with the screen it has.
Although, as soon as I plugged it into the charger, the phone began heating up quite a bunch. The upper frame of the phone is where the heat comes from, almost as if it's coming from the processor or some shorted circuitry.
It's not unbearable to the touch, but it's really close to, which got me really worried.
Is it normal to heat like that on that upper frame while charging and under simple browser load? It also heats up a lot while downloading stuff from the Google Play store, even if not plugged to the charger. Oddly enough, the phone doesn't seem to have throttled down and I didn't have any lags or something. I ran a 3D Mark test when the phone was charging and got really warm, it still scored over 17.5k.
There's a screenshot below for the temperatures I am getting, those were actually low, some of those sensors appeared over 65C earlier on.
Is it faulty hardware? Should I return the product? Could anyone help me? Any help is really appreciated!
Mine never gets that hot. Only warm, as I would describe it best.
I'd try for a return/swap before it's too late and something fries.
G4 temperature testing
Keep in mind it depends on your environment of course, but unless you're living in the depths of hell I seriously doubt 48c while doing nothing much isn't a hardware (SoC thermal) problem. I'd be pushing for a replacement, where'd you buy it from?
By the way 65c? Jesus even my Oneplus 2 didn't get that hot.
hyperfriend said:
Mine never gets that hot. Only warm, as I would describe it best.
I'd try for a return/swap before it's too late and something fries.
Click to expand...
Click to collapse
Yeah, I'll probably try it. I had a Xperia Z1 before and it never gave me heating problems, not to mention the battery would last an entire day with my using and watching videos. Already talked to the seller actually and the person said she'll be waiting for me to change the phone. I don't know, really; might be me and my location, it's really hot in here. Always about 30~35C+. But I still believe the phone shouldn't get that warm when charging.
I actually made a little comparison and my modem/router reaches about the same temperature as it; that is, without any cooling, the little modem gets incredibly hot to the touch.
I actually tried a few things I read around, hard/soft resetting, trying a less juicy charger (taking in consideration the one it comes with delivers 1.8 amp), tried one with 1 amp max output, still heated...
Either way, would you mind posting a screenshot like mine with your phone after some heavy usage/gaming? That'd be really helpful! Thanks in advance for replying!
Ran Antutu, midway switched to Aida and:
Do note: phone still does not feel "hot". Warm, sure. Hot, not quite :good:
Stevles said:
G4 temperature testing
Keep in mind it depends on your environment of course, but unless you're living in the depths of hell I seriously doubt 48c while doing nothing much isn't a hardware (SoC thermal) problem. I'd be pushing for a replacement, where'd you buy it from?
By the way 65c? Jesus even my Oneplus 2 didn't get that hot.
Click to expand...
Click to collapse
Well, that's what the sensors were showing, I don't have a good way to actually measure the temperature the hardware is reaching... Does the OP2 heats up? xD
Well, Brazil isn't really far from hell, common temperatures ranging from 35-43 during the day is...pretty close, I suppose.
Pfeffernuss said:
Ran Antutu, midway switched to Aida and:
Do note: phone still does not feel "hot". Warm, sure. Hot, not quite :good:
Click to expand...
Click to collapse
Thank you for the reference! It's strange though, my sensors reached about the same temperature, but the phone doesn't simply feel warm... As I said earlier, it really feels like a cheap-o ADSL modem on a hot day. You can hold your hand over the screen, for an example, but it becomes uncomfortable. The sides also gets really warm. I managed to figure where most of the heat came from though, it's just at the upper-left edge of the phone, close to the frontal-facing camera.
I've had 4 different Verizon g4's now and the all did the same thing , the two I have that are newest (one a couple weeks old) and they would get so hot around the modem and CPU i couldn't touch them and if even smell the chemicals in the plastic starting to release vapors (which that's not far from actual ignition) but the newest one isn't quite as bad. They all still worked through the heat without any noticeable damage, but I still have to pop the back off while using chrome plugged or not and hold it in front of a fan. This is the weirdest damn phone I've ever seen. .so picky and requires a lots of care but setup just right with a balance of what is continuously running especially how many and what kinda persistent services and it has become a real powerful toy lol
Sent from my VK700 using Tapatalk
The LG G4 is hot because of the Snapdragon 808 processor... See the link here I started:
http://forum.xda-developers.com/g4/help/lg-g4-thermal-compound-mod-t3255074#post64038221
37 and 39 ° on bms? seriously dude, thermal throttling starts at ~45°. Your phone is absolutely normal!
Don't look at tz sensors, they are components instant temperature.
dadrumgod said:
I've had 4 different Verizon g4's now and the all did the same thing , the two I have that are newest (one a couple weeks old) and they would get so hot around the modem and CPU i couldn't touch them and if even smell the chemicals in the plastic starting to release vapors (which that's not far from actual ignition) but the newest one isn't quite as bad. They all still worked through the heat without any noticeable damage, but I still have to pop the back off while using chrome plugged or not and hold it in front of a fan. This is the weirdest damn phone I've ever seen. .so picky and requires a lots of care but setup just right with a balance of what is continuously running especially how many and what kinda persistent services and it has become a real powerful toy lol
Sent from my VK700 using Tapatalk
Click to expand...
Click to collapse
Oh my god, I have been doing that with mine, that's hilarious! I mean, my Xperia Z1 would get really hot with some applications, but then I'd just take it under a tap and cool it off... xD
On the other hand, I really didn't know I'd need to care so much about heat under normal usage with a flagship phone. It's sad because it becomes really uncomfortable to hold.
Almighty1 said:
The LG G4 is hot because of the Snapdragon 808 processor... See the link here I started:
http://forum.xda-developers.com/g4/help/lg-g4-thermal-compound-mod-t3255074#post64038221
Click to expand...
Click to collapse
Uh...okay, I will sure check that, thanks! But the last thing I want to do is to open a damn phone just to apply thermal compound. I wouldn't mind doing that to a PC every week, but doing once for a phone is kinda sad...
oile said:
37 and 39 ° on bms? seriously dude, thermal throttling starts at ~45°. Your phone is absolutely normal!
Don't look at tz sensors, they are components instant temperature.
Click to expand...
Click to collapse
I kinda figured that out, the temperature they were showing is really over the head. The problem is, the upper part of the screen feels way hotter than 40C. I also did another run with the phone while heated and it showed throttling this time. Scores from Antutu and 3D mark were about 15~20% off.
michaelnishi said:
Oh my god, I have been doing that with mine, that's hilarious! I mean, my Xperia Z1 would get really hot with some applications, but then I'd just take it under a tap and cool it off... xD
On the other hand, I really didn't know I'd need to care so much about heat under normal usage with a flagship phone. It's sad because it becomes really uncomfortable to hold.
Uh...okay, I will sure check that, thanks! But the last thing I want to do is to open a damn phone just to apply thermal compound. I wouldn't mind doing that to a PC every week, but doing once for a phone is kinda sad...
I kinda figured that out, the temperature they were showing is really over the head. The problem is, the upper part of the screen feels way hotter than 40C. I also did another run with the phone while heated and it showed throttling this time. Scores from Antutu and 3D mark were about 15~20% off.
Click to expand...
Click to collapse
The Xperia Z1 runs on a Snapdragon 800, not a 808 so it's not the same. That's the reason the G4 used a 808 instead of a 810 as the 808 is throttled back. As for opening the phone, it's the easiest phone to open and you only need to do it once for the thermal interface material, G3 had heating problems too. A Smartphone is still a computer as it's a entire Unix workstation that fits in your pocket. The processor is 6 cores and is 64 bit and it's located on the top part of the screen.
Almighty1 said:
The Xperia Z1 runs on a Snapdragon 800, not a 808 so it's not the same. That's the reason the G4 used a 808 instead of a 810 as the 808 is throttled back. As for opening the phone, it's the easiest phone to open and you only need to do it once for the thermal interface material, G3 had heating problems too. A Smartphone is still a computer as it's a entire Unix workstation that fits in your pocket. The processor is 6 cores and is 64 bit and it's located on the top part of the screen.
Click to expand...
Click to collapse
Yeah, I know that quite well, believe me. It still makes me a bit sad about having a phone of this kind heating like a piece of plastic you find at those cheap-o stores. I would have actually bought a Xperia Z3+, but I heard so much about the thing overheating that made me really sad.
I also found one of those travel pack kits, with a battery and a external charger, is it a good idea to get one? You know, make usage of this lovely thing that swappable battery is.
Oddly enough, my own battery seems to be lasting pretty okay, fully charged yesterday, did some gaming, watched videos on YT, installed applications and such. Still going for over 24 hours right now and it has some juice left.
michaelnishi said:
Yeah, I know that quite well, believe me. It still makes me a bit sad about having a phone of this kind heating like a piece of plastic you find at those cheap-o stores. I would have actually bought a Xperia Z3+, but I heard so much about the thing overheating that made me really sad.
I also found one of those travel pack kits, with a battery and a external charger, is it a good idea to get one? You know, make usage of this lovely thing that swappable battery is.
Oddly enough, my own battery seems to be lasting pretty okay, fully charged yesterday, did some gaming, watched videos on YT, installed applications and such. Still going for over 24 hours right now and it has some juice left.
Click to expand...
Click to collapse
Remember that Sony has always been known as a quality electronics brand. LG = GoldStar... until they had flat screen tv's, GoldStar was always a low end brand. It's no different than Hyundai having their new Genesis or whatever car and trying to be in the luxury market. The brand will never be the same level as the luxury brands like Cadillac, Lincoln, Mercedes-Benz, BMW, Lexus, Infiniti if you know what I mean.
No idea about the travel pack kits as I have never seen one here, depends if it's a good value or not as the battery alone is about $US30 and you really only need the battery. If you really wanted another battery, just call the wireless carrier and claim that your battery have issues, they'll send you one for free without having to send the old one back. I have over 760 apps installed including system apps and I have to greenify everything, otherwise Google Play Store won't download and install and hangs, doesn't do it on my Motorola Xoom tablet with less memory but only happens on phones even Motorola's for some reason. I noticed if I freeze Lookout, my battery life is way longer.
Almighty1 said:
Remember that Sony has always been known as a quality electronics brand. LG = GoldStar... until they had flat screen tv's, GoldStar was always a low end brand. It's no different than Hyundai having their new Genesis or whatever car and trying to be in the luxury market. The brand will never be the same level as the luxury brands like Cadillac, Lincoln, Mercedes-Benz, BMW, Lexus, Infiniti if you know what I mean.
No idea about the travel pack kits as I have never seen one here, depends if it's a good value or not as the battery alone is about $US30 and you really only need the battery. If you really wanted another battery, just call the wireless carrier and claim that your battery have issues, they'll send you one for free without having to send the old one back. I have over 760 apps installed including system apps and I have to greenify everything, otherwise Google Play Store won't download and install and hangs, doesn't do it on my Motorola Xoom tablet with less memory but only happens on phones even Motorola's for some reason. I noticed if I freeze Lookout, my battery life is way longer.
Click to expand...
Click to collapse
True about the brand thing. But I really thought LG improved a lot. With their flat-screens and phones at least. I have been using LG monitors and TVs for a while now, only issue I had was with a LCD monitor, after 5 years of usage the thing won't stay on for over 5 minutes. The monitor would reboot and freeze at the LG logo.
The carrier thing isn't a choice where I live. The phone is "unlocked", so you can use with any carrier you want. My model is also the H818, dual-sim version. And yeah, it's going really cheap here, it's about 90 BRL, which is about 23 bucks. I found it in a good retail store and the product is certainly original from LG.
I also thought about getting the brand new Xperia Z5, but it's far too expensive here and it would have a smaller screen. While the Z5 premium isn't even an option because it hasn't reached the stores yet. So, the best option I had was the LG G4. Best price, swappable battery, larger screen, great camera and the best of those was the expandable storage. I own a toshiba class 10 64 gig SD, didn't want it to go to waste with a Samsung phone. ^^
michaelnishi said:
True about the brand thing. But I really thought LG improved a lot. With their flat-screens and phones at least. I have been using LG monitors and TVs for a while now, only issue I had was with a LCD monitor, after 5 years of usage the thing won't stay on for over 5 minutes. The monitor would reboot and freeze at the LG logo.
The carrier thing isn't a choice where I live. The phone is "unlocked", so you can use with any carrier you want. My model is also the H818, dual-sim version. And yeah, it's going really cheap here, it's about 90 BRL, which is about 23 bucks. I found it in a good retail store and the product is certainly original from LG.
I also thought about getting the brand new Xperia Z5, but it's far too expensive here and it would have a smaller screen. While the Z5 premium isn't even an option because it hasn't reached the stores yet. So, the best option I had was the LG G4. Best price, swappable battery, larger screen, great camera and the best of those was the expandable storage. I own a toshiba class 10 64 gig SD, didn't want it to go to waste with a Samsung phone. ^^
Click to expand...
Click to collapse
It really depends on how many of the components are made by LG. Samsung makes more of the things inside their devices. As for LG, their OLED Flat Panel displays are full of problems if you look at avsforums which results into replacing panels and even sending full refunds. Panasonic sources the LG panels and then uses their own electronics and the thing is better but the Panasonic is atleast $US10k while the LG is $US5k.
I had never seen a LG monitor until recently as I'm still on a Silicon Graphics Inc 1600SW made by Mitsubishi Industrial in Japan, this is the same display used by the big CEOs on their desks including Bill Gates.
You can use the Verizon Wireless LG G4 with any carrier you want too, it's just the data part might not be 4G LTE speeds as those are all carrier dependent. Wow, 23 bucks is cheap for a phone since wouldn't it actually be cheaper buying another G4 than the so called battery kit you mentioned? The LG G4 supposedly has better reception than even Motorola phones from what I heard so not all is bad, basically they don't put 100% into a product so they can have room to introduce better models at a later date. LOL. The LG G4 is the only phone currently that has both a replaceable battery and MicroSD slot. To me, the second one is a requirement while the first one is good to have.
Almighty1 said:
It really depends on how many of the components are made by LG. Samsung makes more of the things inside their devices. As for LG, their OLED Flat Panel displays are full of problems if you look at avsforums which results into replacing panels and even sending full refunds. Panasonic sources the LG panels and then uses their own electronics and the thing is better but the Panasonic is atleast $US10k while the LG is $US5k.
I had never seen a LG monitor until recently as I'm still on a Silicon Graphics Inc 1600SW made by Mitsubishi Industrial in Japan, this is the same display used by the big CEOs on their desks including Bill Gates.
You can use the Verizon Wireless LG G4 with any carrier you want too, it's just the data part might not be 4G LTE speeds as those are all carrier dependent. Wow, 23 bucks is cheap for a phone since wouldn't it actually be cheaper buying another G4 than the so called battery kit you mentioned? The LG G4 supposedly has better reception than even Motorola phones from what I heard so not all is bad, basically they don't put 100% into a product so they can have room to introduce better models at a later date. LOL. The LG G4 is the only phone currently that has both a replaceable battery and MicroSD slot. To me, the second one is a requirement while the first one is good to have.
Click to expand...
Click to collapse
Oh, sorry my english failed me there, second language and stuff, you know? I meant the charger kit is 23 bucks in here. 90 BRL converted to USD is about 23 bucks. The phone itself costed me almost 500 USD, got the one with black leather back, damn it looks great.
There's a lot of stuff about components I didn't know. Decent monitors here such as gaming ones are really expensive. LG ones manages good image quality and are also quite cheap. There is cheaper stuff in here, but the image quality on them is really bad.
Swappable battery isn't a must for me either, it's just nice to have. Now the MicroSD slot is a must, I like carrying a lot of stuff on the phone. Music, videos, games and such. Just 32 gigs wouldn't be enough for me xD
At $US23, it's still a bargain for the charger kit. I have the black leather back as well except the thread on mines is black as I basically used shoe cream on it to condition the leather after hearing some people's leather worn off.
About all monitors are cheap compared to my SGI which was $US2,500. I actually never use the internal SD because if something happens to the phone and it won't boot, you're in trouble as I have my Titanium backups on a 200GB MicroSD card which was actually cloned from my Motorola Droid RAZR Maxx HD.
Almighty1 said:
At $US23, it's still a bargain for the charger kit. I have the black leather back as well except the thread on mines is black as I basically used shoe cream on it to condition the leather after hearing some people's leather worn off.
About all monitors are cheap compared to my SGI which was $US2,500. I actually never use the internal SD because if something happens to the phone and it won't boot, you're in trouble as I have my Titanium backups on a 200GB MicroSD card which was actually cloned from my Motorola Droid RAZR Maxx HD.
Click to expand...
Click to collapse
It is really cheap indeed, just ordered one. The kit's model is BCK-4800, it comes with an extra battery, a battery case and the external charger. Really great deal!
Did not know about that thing on the leather back... I do have a simple TPU case here, I haven't been using it because the phone's temperatures. It's really odd though, today isn't so hot in here (About 25-30C most) the phone is warm but it charged really quickly, it jumped from 5% to 85% in less than an hour. xD
Either way, that sounds like a really expensive monitor...Woah...
I'm using a battery pack as I still didn't get the free promotion of the battery, battery case and leather back yet as they ran out of stock. Last email from LG on October 20, 2015 was another 4-6 weeks which has came and gone, they haven't responded to my emails either. I'm using a Ringke Fusion case except it always pulls the entire leather back off when I try to take off the case.
http://www.amazon.com/Compatible-LEATHER-Back-Absorption-Protection-Customizable/dp/B00V51QOXA
When I got my monitor, it was in 2000 so it's still alive and kicking... LOL. It's basically the 17.3" version of the Apple 22" display. SGI is the big workstation manufacturer that has 500" or larger screens.
https://en.wikipedia.org/wiki/SGI_1600SW
Almighty1 said:
I'm using a battery pack as I still didn't get the free promotion of the battery, battery case and leather back yet as they ran out of stock. Last email from LG on October 20, 2015 was another 4-6 weeks which has came and gone, they haven't responded to my emails either. I'm using a Ringke Fusion case except it always pulls the entire leather back off when I try to take off the case.
http://www.amazon.com/Compatible-LEATHER-Back-Absorption-Protection-Customizable/dp/B00V51QOXA
When I got my monitor, it was in 2000 so it's still alive and kicking... LOL. It's basically the 17.3" version of the Apple 22" display. SGI is the big workstation manufacturer that has 500" or larger screens.
https://en.wikipedia.org/wiki/SGI_1600SW
Click to expand...
Click to collapse
I did a quick search on it and saw that! I am actually using a old LG CRT monitor because my old 23 inch LCD one broke.
That case looks really good, but it's not shipped to Brazil... Oh well, nothing new, really.

I HAVE FOUND A SOLUTION FOR THE LG G4 BOOTLOOP ISSUE *Story & Tutorial*

Basically what happened, was on Friday, my phone got stuck in a boot loop. It would get to the "Optimizing Apps" screen and shut off again. Other people may just get to the Verizon screen, or even just the LG screen. I looked it up and found that it was a major issue affecting many people, so I just filed for a warranty and received my new phone today. Well, on Saturday night LinusTechTips, a popular tech YouTube channel(You should really check them out, they are great), released a video on how they fixed a dead Graphics Card and PCI-E SSD by heating them up past the melting point of solder and then testing them. For them, it only worked on the GPU. As I was packing up my seemingly dead phone to ship back to LG TODAY, i decided to give it one more shot. I disassembled the device to the point where I could take out the logic board. I took the logic board and wrapped it in one layer of parchment paper and two layers of tinfoil, shiny side facing in(FYI tinfoil has two sides, shiny and matte). I then placed this package into a barbecue. I turned on the left and middle burners and left the package with my logic board inside on the right side to the grill so it wasn't receiving direct heat. After 10 minutes, I took it out, re-assembled my phone and it booted. I was able to get all of my pictures off of it. This has only been confirmed to work on my phone, but seeing as this SAME issue is affecting thousands of people, It's definitely worth a shot. If you are going to use an oven, PLEASE, make sure it's above 385 degrees Fahrenheit and that you don't plan on using that oven for food ever again, this may release some toxic chemicals etc. I plan on using my grill again, so I just made sure to leave the grill open for 24 hours and I'm going to clean it before I use it next. If you have any questions let me know!
P.S. My LG G4 was the Verizon model.
I highly recommend doing this ONLY if you have no other option. Remember that heating a logic board to high temperatures can release toxic fumes. Don't use an oven you use for food preparation! Toxic fumes can leave residue in the oven and will be re-released upon reheating over many cycles!
Assuming LG's press release regarding the issue is correct and it is really a loose contact, this "fix" could actually work. Of course, only if the loose connection is a soldered connection. Though, it's controversial. You have to remember that the melting point for SMD solder is around ~350°C, or 662°F. So 358°F, or 181°C, is not nearly enough to actually re-solder a loose connection. My guess is that the loose solder point is only expanding due to the heat. There is no real reconnect. It might only be a matter of time until it also breaks. If you could locate the actual loose connection you could really re-solder it and have it fixed permanently.
I've done this on many many devices, including graphics cards, smartphone logic boards, PC mainboards etc. It only works if a soldered connection has a crack small enough that heat expansion is enough to gain reconnection. If there is a loose contact on the PCB or the "crack" in the solder is too big, it does not work. Also, if you really have a dead chip, this trick also won't (always) work.
I read a similar story on reddit. The guy put his main board in the oven, reassembled it, and the phone started working. The last update I read was 3 days later, still working.
I fixed mine temporarily by heating up the emmc chip using solder hot air gun. It seems to be just the emmc chips connection.
Failed again after a fortnight when the phone got too hot. The connection seems to break when the g4 gets hot.
One option to try is to boot the phone inside a freezer. I found that worked too.
Pretty poor quality control on lg's part.
I'm going to try again and see if I can fix permanently.
Worked for me too
I have a LG G4 H815 with serial number starting with 507. It died yesterday night. The bootloop escalated quickly to full death. Even the freezer trick did not work.
I followed the OP instructions. I heated up the grill to ~250 degrees Celsius and cooked the motherboard for 10 minutes.
Magically the phone has been working for a couple of hours since and I have been able to backup files to the external SC card.
I wonder how much more will it work.
Thank you for help OP!!!
Word of advice to other LG G4 users. Backup your phone regularly. Use an external SD card. Set the camera to save images and videos to the SD card. At least at doom day you will have them saved.
Cheers
Silverdace said:
I'm going to try again and see if I can fix permanently.
Click to expand...
Click to collapse
any more info on this? Looks like my phone bit it the other day, no boot...just dead...
I'm going to take her apart to see if I can find a bad solder, luckily I still had my G2 lying around.
NFN, I sent mine back to LG US in Texas for a full warranty repair. 10 days RT, no cost at all, shipping included.
No unfortunately. I managed to overcook it and it stopped booting altogether
Do you have the address and info Re your communication w/ lg
metropical said:
NFN, I sent mine back to LG US in Texas for a full warranty repair. 10 days RT, no cost at all, shipping included.
Click to expand...
Click to collapse
Do you have the address and info Re your communication w/ lg, I'd like to send mine back for repair due to this same issue.
http://www.lg.com/us/support/repair-service/schedule-repair-us
they did a **** job. touch screen peeling and failing. Phone slowing down again after about 6mos. Looking for a new phone, but the choices are so limited.
My phone is 2 years 4 months old....never bootlooped
Feel bad for u guys
deltadiesel said:
My phone is 2 years 4 months old....never bootlooped
Feel bad for u guys
Click to expand...
Click to collapse
Mine made it just about the same but died from other causes.
deltadiesel said:
My phone is 2 years 4 months old....never bootlooped
Click to expand...
Click to collapse
What is the beginning of your phone's serial number?
Hi bro kindly tell is it worth to install custom rom kernal with root to prevent the cpu to clock high speed so it will not go into bootloop? My is also 2 years old thanks
250 degrees F for 6 minutes and brought the phone back to life. We'll see how long it lasts.
Actually it worked on BOTH G4s I have. I first just went dead and I bought a used one for $100 on eBay and it worked fine until the bootloop showed up.

Screen flickering fix SUCCESSFUL!!!

Hello everyone,
I've had my G3 D855 which I have been using for 16 months. Bought it brand new on eBay and everything was going well until a month ago when the screen flickering began.
Tried every trick on YouTube or Google but from last week, it got so bad that I'll be lucky to have it working for 5 minutes in 24 hours.
Being a tech enthusiast, I decided to take the bull by the horn. I decided to either end up fixing it or giving it a proper burial.
After careful and logical study of hardware and software, I reached a conclusion that the problem is hardware related.
Which took me to options like ambience sensor, screen connector, battery, processor among others.
Started by eliminating the suspects from the ones easier to handle like battery, inspection of screen connector and flex etc.
SOLUTION
I do recall that many people recorded success with using paper or any other thing to press down the connectors for camera and ambience/proximity sensors (which in turn adds pressure to the big chip at the back(processor).
Since my phone has fallen countless times (at times from a distance), I assumed some components must have partially detached from the motherboard and cause the issue.
So I got a friend's soldering rework station heat gun and soldering paste.
1. Applied paste to the two connectors for the screen as shown on the first image below and reheated them properly then allowed it to cool.
2. Applied paste generously to the main chip(processor) as shown on the second image below and fired it up before letting it also cool down.
Remember that my screen refused to open throughout the day, haven't been able to use it for almost three days. Once I coupled it and started, walah! :laugh:
Not a flicker, not even once and I'm 13 hours still counting but I believe the problem has been fixed (fingers crossed lol) + I used the phone to type and send this.
I advise you try it but be careful not to shift or move the components being heated so as not to displace them and also reach out to as many people as possible cos there are thousands with the issue and I didn't make a video for YouTube as I didn't know it'll work.
So, good luck to you all:good::good::good:
NB:
Just posted a VIDEO https://youtu.be/tP0ds01ML9I
Please if this works for you or someone else, do leave a comment. Also, if you run into any issue(s), let me know so we'll work it out.
Don't know if the moderators can care to make this thread sticky, it's too valuable to be buried down the heap...
So maybe this flickering issue is due to CPU/GPU overheat, thermal paste appliance seems to be a good option... I'll get my hands on a G3's motherboard with this issue and apply this mod. Will post the results :good:
siredux said:
So maybe this flickering issue is due to CPU/GPU overheat, thermal paste appliance seems to be a good option... I'll get my hands on a G3's motherboard with this issue and apply this mod. Will post the results :good:
Click to expand...
Click to collapse
Not just putting thermal paste but heating the processor back is the key
My advise to those who don't have heat gun or soldering paste is to go to any good technian who has a heat gun in his workshop and let him do it for you. Just show him the places and give him something when he's through. If he's a phone repair person, all the better as he'll know the best technique to apply.
People have had success baking the motherboard in the oven for 10 minutes to fix potential soldering issues with components. At the moment I have used the piece of paper method and it has worked great but will need to use a more permanent method as I plan on selling it.
I've tried the paper method on the adapter near the camera, and, now the display works fine , but my wifi signal strength is lowered. I used to get an excellent signal strength on using wifi at any rooms in my home but now I get excellent signal strength only when I am using wifi near my router.
This sounds very promising and I'm very eager to try this! But I am unfortunately confused, where exactly am I putting the paste on these 3 parts?
Pieddog said:
This sounds very promising and I'm very eager to try this! But I am unfortunately confused, where exactly am I putting the paste on these 3 parts?
Click to expand...
Click to collapse
You'll put the paste over the connectors and the edges where the connectors are soldered to the motherboard then heat.
As for the processor, you put a good amount right on it & as you heat the processor, the paste will melt and drop on the side of the processor to enhance the contact with the motherboard.
ie. You'll put the paste right in the area I circled with red on the attachment pics above.
zayidhs said:
You'll put the paste over the connectors and the edges where the connectors are soldered to the motherboard then heat.
As for the processor, you put a good amount right on it & as you heat the processor, the paste will melt and drop on the side of the processor to enhance the contact with the motherboard.
ie. You'll put the paste right in the area I circled with red on the attachment pics above.
Click to expand...
Click to collapse
Hmm okay thanks, I'll have to go buy a heat gun, they seem pretty cheap. Hopefully I can get this done over the weekend, will report back
siredux said:
So maybe this flickering issue is due to CPU/GPU overheat, thermal paste appliance seems to be a good option... I'll get my hands on a G3's motherboard with this issue and apply this mod. Will post the results :good:
Click to expand...
Click to collapse
Check out the video
burgess_boy said:
People have had success baking the motherboard in the oven for 10 minutes to fix potential soldering issues with components. At the moment I have used the piece of paper method and it has worked great but will need to use a more permanent method as I plan on selling it.
Click to expand...
Click to collapse
Check out the video
Pieddog said:
Hmm okay thanks, I'll have to go buy a heat gun, they seem pretty cheap. Hopefully I can get this done over the weekend, will report back
Click to expand...
Click to collapse
Check out the video
Salman4701 said:
I've tried the paper method on the adapter near the camera, and, now the display works fine , but my wifi signal strength is lowered. I used to get an excellent signal strength on using wifi at any rooms in my home but now I get excellent signal strength only when I am using wifi near my router.
Click to expand...
Click to collapse
Check out the video
zayidhs said:
Check out the video
Click to expand...
Click to collapse
please share the link to video ??
what video? did anyone try this method tho and it worked or not?
Salman4701 said:
please share the link to video ??
Click to expand...
Click to collapse
The link is in the post, I added it
Youssef mo7a said:
what video? did anyone try this method tho and it worked or not?
Click to expand...
Click to collapse
Check the link in the post. Only 6 people have tried with 100% success. They all gave me feedback
https://youtu.be/tP0ds01ML9I
i'm going to subscribe this thread for my future references if my G3 does flickering too..
thanks for sharing this useful tips anyway
Sent from my LG G3 F400L using your data connection.
zayidhs said:
Check out the video
Click to expand...
Click to collapse
Thanks mate, will do!

Do it yourself Hardware Repair

I am making this post so it is more broadly seen by people who have a specific hardware issue.
This solution is for issues specifically with the board being fried or more likely broken solder connection. I found this solution while browsing Chinese Custom Rom threads and apparently it works.
Absolutely it's better to pay a professional reball the broken solder connection.
There is a do it yourself/cheap method that definitely does not involve using an Oven.
I included photos at the bottom of the link and rather than create a redundant post, for something that I have already made : Go here for the Jerry Rig Suggestion
https://forum.xda-developers.com/showpost.php?p=79303956&postcount=72
Good Luck
Make sure you followed all of the unbricking steps here https://forum.xda-developers.com/le-pro3/how-to/unbrick-leeco-phones-leeco-variants-t3847220 before even considering this method..
There are 3 unbricking methods mentioned
Qfil with Flash 2.0 or 1.9 ( Try both)
QPST ( Instructions in first comment of unbricking thread)
Flashbat.all method ( Instructions on Unbrick OP, and in first couple of comments)
Hi
What do you think, can I repair this problem? :
My phone is dead. It is not able to turn on, it just squezing sometimes, if I push the turn on button. The screen is full black since the shut down. No logo no any fastboot screen, nothing. The led light was pale green before the qfil.
drdagi said:
Hi
What do you think, can I repair this problem? :
My phone is dead. It is not able to turn on, it just squezing sometimes, if I push the turn on button. The screen is full black since the shut down. No logo no any fastboot screen, nothing. The led light was pale green before the qfil.
Click to expand...
Click to collapse
I wouldn't bother trying this possible solution unless you are 100% sure that you have broken solder connections. Just because your phone doesnt turn on doesn't mean its the chips. It much more likely that your issue is just the battery.
Also just so you know when the board is fried the phone will still turn on, and will boot to fastboot but not recovery, qfil works but does nothing and if you boot to fastboot and leave it on the fastboot screen the screen will turn to static. At least this is what happens with the majority of chip death issues. However there was one case that I know of on a friends X722 which could not go to fastboot, and that issue ended up being a fried GPU, which this possible fix may resolve.
If you are only getting a black screen leave the phone plugged in overnight ( preferably with a different cable) , After knowing that the phone was charged for long enough what happened? Did the phone get warm at all? Does the phone vibrate?
If the phone does vibrate, try using the QPST method, it's the 2nd post on the Unbricking thread mentioned above in the OP.
Another possible cause of your issue is static, they only way to test and possibly resolved is to unplug the battery from the board and plug back in again. Should you attempt trying this, only use a heat gun to melt the glue holding the screen on...there is alot and a hair dryer will not work, without damaging your LCD.
If I had your issue, I would order a battery and LCD, and swap the battery, there is a good chance it will work. If not you can move on to more drastic solutions such as the one mentioned in the OP. Worse case scenario, you will be out the cost of the battery which is about $7 and LCD which is about $15
Good Luck and make sure you followed all of the steps here https://forum.xda-developers.com/le-pro3/how-to/unbrick-leeco-phones-leeco-variants-t3847220
There are 3 unbricking methods mentioned
Qfil with Flash 2.0 or 1.9 ( Try both)
QPST ( Instructions in first comment of unbricking thread)
Flashbat.all method ( Instructions on Unbrick OP, and in first couple of comments)
I believe I read this thread before, but didn't read it well
This thing here I believe is very important, so much to put it in special color
>>Also just so you know when the board is fried the phone will still turn on, and will boot to fastboot but not recovery, qfil works but does nothing and if you boot to fastboot and leave it on the fastboot screen the screen will turn to static.
I guess it's certain now that I have some harware issue, most probably if GPU is separated from the CPU.
tsongming said:
the board being fried or more likely broken solder connection. I found this solution while browsing Chinese Custom Rom threads and apparently it works.
Click to expand...
Click to collapse
I don't know if it's just me who is unlucky but I have lost yet another USB board. This time the one you sent me burnt up as I connected it to my PC. I don't think it's a cable issue because I was using a high quality USB cable from BASEUS. How could it be that I'm not seeing more complaints like mine?
This time I think it could have been caused by dirt in the port because I'd just returned from my rural area and there I did a lot of work involving dirt. Also, there was a slight shower that got me on my way back and I keep the phone in the pocket with the USB port exposed and looking up. My patience with this phone has just about run out now. This is the worst investment I've ever made on a phone :crying:
Sent from my LeEco Le Pro3 using XDA Labs
twistyplain said:
I don't know if it's just me who is unlucky but I have lost yet another USB board. This time the one you sent me burnt up as I connected it to my PC. I don't think it's a cable issue because I was using a high quality USB cable from BASEUS. How could it be that I'm not seeing more complaints like mine?
This time I think it could have been caused by dirt in the port because I'd just returned from my rural area and there I did a lot of work involving dirt. Also, there was a slight shower that got me on my way back and I keep the phone in the pocket with the USB port exposed and looking up. My patience with this phone has just about run out now. This is the worst investment I've ever made on a phone :crying:
Sent from my LeEco Le Pro3 using XDA Labs
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Click to collapse
Wow, sorry to hear that. I think that those LeEco phones are hit or miss. But it really doesn't seem that they were made to last more that a couple of years. I have fried the usb card myself, when I bought very first leeco, its too easy to fry those cards, and in retrospect the Leeco charge is too powerful. The remaining Leeco that I have left charges much better ( stays cooler) when using my Xiaomi Charger.
I agree that you have had some really bad luck. I would not put any more money into it. you are better off buying a cheap Xiaomi...even a used one. You can find some good deals on Amazon and Swappa. Amazon also has refurbished Samsung phones, and they are highly reliable.
You can get a Galaxy 7 for $139 https://www.amazon.com/Samsung-Gala...s=wireless&ie=UTF8&qid=1573693012&sr=1-4&th=1 and they are really good phones.
Here is a renewed One Plus 6T for $267 https://www.amazon.com/OnePlus-A601...ked+cell+phones+renewed&qid=1573693220&sr=8-4
LG V30 for $177 https://www.amazon.com/LG-Camera-Si...ed+cell+phones+renewed&qid=1573693365&sr=8-21
I bought my daughter an A3 and honestly I can't recommend it enough. For a tight budget I personally feel that this is one of the best deals out there for ony $158 ( $50 less than what I paid 2 months ago) https://www.amazon.com/Xiaomi-A3-64...=sr_1_3?keywords=Xiaomi&qid=1573693435&sr=8-3
It has an Amoled Screen and comes with Android One with zero bloatware. You basically get a custom rom experience with a stock phone. To make matters better Android 10 will be released for the A3 in January. The camera, is light years better than the Le Pro 3 and the processor is honestly fast enough, for most of us. No doubt, its more expensive than just getting another card. But saving yourself from the hassles of these constant issues will make it worthwhile. The only drawback is the screen is 720 instead of 1080. But I swear, if you place in side by side with my Mi8, most people would never guess, that the resolution is a little less. Because it's still an amoled screen.
Best wishes, unfortunately I don't have any more working cards or I would send it to you.
I've learned that quick charge is dangerous. I'm using now an usb meter that doesn't let an output beyond 1.4amps to charge my phone now, it charges pretty quickly in fact and my phone doesn't get hot now (even that I live in a hot area)
tylerciggy said:
I've learned that quick charge is dangerous. I'm using now an usb meter that doesn't let an output beyond 1.4amps to charge my phone now, it charges pretty quickly in fact and my phone doesn't get hot now (even that I live in a hot area)
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Yeah. The current pushed by the stock leeco charger is either too high (doubtful) or the charging system of the pro 3 isn't designed to handle quick charge 3 very well (most likely). I have used my stock leeco charger to charge my brother's Nokia 8 (Q.C. 3) and it gets just a little warm even with a case on. Also, the leeco charger is Quick Charge 3 certified so they must have made it according to Qualcomm standards.
I think it's the quality of the parts on the phone itself that are substandard. Since this USB board was sent to me by @tsongming and he had used it quite a while, I believe it could have been perfectly fine. My suspicion is that something else could be wrong with my phone like the USB flex cable. The kind of burning I saw must have been caused by power from the battery because the USB 2.0 port I was connecting to on my PC can only provide 2.5 amps maximum. This is not enough in my opinion to completely melt the usb-c receptacle on the phone. (It's very badly burnt). I will just have to charge the battery externally until I figure out whether it's worth investing any more money into this phone.
Sent from my LeEco Le Pro3 using XDA Labs
twistyplain said:
Yeah. The current pushed by the stock leeco charger is either too high (doubtful) or the charging system of the pro 3 isn't designed to handle quick charge 3 very well (most likely). I have used my stock leeco charger to charge my brother's Nokia 8 (Q.C. 3) and it gets just a little warm even with a case on. Also, the leeco charger is Quick Charge 3 certified so they must have made it according to Qualcomm standards.
I think it's the quality of the parts on the phone itself that are substandard. Since this USB board was sent to me by @tsongming and he had used it quite a while, I believe it could have been perfectly fine. My suspicion is that something else could be wrong with my phone like the USB flex cable. The kind of burning I saw must have been caused by power from the battery because the USB 2.0 port I was connecting to on my PC can only provide 2.5 amps maximum. This is not enough in my opinion to completely melt the usb-c receptacle on the phone. (It's very badly burnt). I will just have to charge the battery externally until I figure out whether it's worth investing any more money into this phone.
Sent from my LeEco Le Pro3 using XDA Labs
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Click to collapse
My X722 died because I just plugged in the cable to charge. Although I have to admit that the phone socket was not in optimal conditions because I used a crappy cable, so the last one I was using was charging fine but it had to enter in an specific position in order to quick charge to function. It's probably the charger IC that is damaged, but I haven't had the money to send it to repair.
As far as I know, the motherboards just provide 0.5amp unless you are using an special port that can provide more power.
In my opinion 2.5amp at 5v is not that good either, because it's pushing the limit of most phones at 5v.
I am guessing that buying the original $30 USB board from AliExpress won't buy me much time because they have all been used before. Almost every spare part of this phone is not brand new (except for batteries and screens, I guess).
I think it's time to cut my losses. My pro 3 not only needs a new USB board but also a battery and another high quality USB cable. I might buy all of that for $60 only to have the USB port burn again. It doesn't make any sense to keep pouring money into this phone.
Sent from my LeEco Le Pro3 using XDA Labs
What ? $30 usd ? I've seen it in $2.5 for 2 boards, well, not original of course.
You just need to check that it has the extra IC, because there are ones that doesn't has it... although I don't remember what was for that IC, but you can easy see it that some boards just are missing a chip.
As for the cable, I'm using some EFFE cables (EFFE is the brand) and they are working wonderfully, I bought 3 for $7 usd, they plug in fine and stay in too, they were recommended to me by a friend and I'm very happy with them. They even stop giving charge to my dead phone because they detect somehow that there is a short, well, at least that is what my usb meter tells me, although I don't know how do they manage to do that, I don't really think they have an IC in them.
twistyplain said:
I am guessing that buying the original $30 USB board from AliExpress won't buy me much time because they have all been used before. Almost every spare part of this phone is not brand new (except for batteries and screens, I guess).
I think it's time to cut my losses. My pro 3 not only needs a new USB board but also a battery and another high quality USB cable. I might buy all of that for $60 only to have the USB port burn again. It doesn't make any sense to keep pouring money into this phone.
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Click to collapse
For the record the board that I sent you came from a brand new, LePro 3 not opened bought in the spring 2018. However, I assume that it was made after Leecos public fall. I would guess that it was assembled with C grade parts, because my remaining, working LePro 3 is one of our first Leecos bought in 2016. It's also interesting to note that our 2 remaining X522s are both functioning just fine.
As you said could be the flex cables or just a shoddy soldering job that eventually shortened out the board.
Have you tested the board to be sure that it's not the port itself that is bad?
Another interesting thing to note is that Qualcomm removed Leeco from it's list of approved quick charge device list.
One last reason on why I feel that the charger itself may be part of the problem is that I have a 12 watt portable charger and the Leecos do not get hot at all when using it.
I threw my Leeco charging bricks in the trash after my daughter plugged in my Mi8 for me while I was cooking dinner. Not knowing that I had a preference, she used the Leeco charger.
Later when I checked the phone to see if it was finished charging, I found it was extremely hot, and this phone is rated for QC 4.0. So rather than taking any chances into the trash it went.
tsongming said:
For the record the board that I sent you came from a brand new, LePro 3 not opened bought in the spring 2018. However, I assume that it was made after Leecos public fall. I would guess that it was assembled with C grade parts, because my remaining, working LePro 3 is one of our first Leecos bought in 2016. It's also interesting to note that our 2 remaining X522s are both functioning just fine.
As you said could be the flex cables or just a shoddy soldering job that eventually shortened out the board.
Have you tested the board to be sure that it's not the port itself that is bad?
Another interesting thing to note is that Qualcomm removed Leeco from it's list of approved quick charge device list.
One last reason on why I feel that the charger itself may be part of the problem is that I have a 12 watt portable charger and the Leecos do not get hot at all when using it.
I threw my Leeco charging bricks in the trash after my daughter plugged in my Mi8 for me while I was cooking dinner. Not knowing that I had a preference, she used the Leeco charger.
Later when I checked the phone to see if it was finished charging, I found it was extremely hot, and this phone is rated for QC 4.0. So rather than taking any chances into the trash it went.
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Click to collapse
Wow!! Leeco really must have used grade c parts. I haven't mistreated that board even once since you sent it. That means it only lasted three months! It is just unbelievably negligent for leeco to use these parts. They must have been from the reject pile.
I don't need to test the board because the USB-C receptacle on the phone is completely melted. Connecting a charging cable seems to cause it to heat up fast and start smoking. It might have been a short on the connector that caused it to burn up. I think the quality of the protruding part with the pin connectors is just poor and repeated use loosens the pins which eventually touch.
I'm done with leeco for good now. I was thinking about fixing the phone to sell but that now seems like a lost cause. I'll keep it until it's dead and then take a hammer to it. Even selling it for spare parts might be a loss for me so I'm stuck with it.
Sent from my LeEco Le Pro3 using XDA Labs
twistyplain said:
Wow!! Leeco really must have used grade c parts. I haven't mistreated that board even once since you sent it. That means it only lasted three months! It is just unbelievably negligent for leeco to use these parts. They must have been from the reject pile.
I don't need to test the board because the USB-C receptacle on the phone is completely melted. Connecting a charging cable seems to cause it to heat up fast and start smoking. It might have been a short on the connector that caused it to burn up. I think the quality of the protruding part with the pin connectors is just poor and repeated use loosens the pins which eventually touch.
I'm done with leeco for good now. I was thinking about fixing the phone to sell but that now seems like a lost cause. I'll keep it until it's dead and then take a hammer to it. Even selling it for spare parts might be a loss for me so I'm stuck with it.
Click to expand...
Click to collapse
I am sure that they used low quality parts on those last batches of phone, I heard via a friend who lives in Shenzhen that they hired a 3rd party to assemble the final phones... The ones that came with 32gb drives, no nfc or quick charge etc. It sucks because they had so much potential.
Whatever you end up getting. Please do stay in touch, I have enjoyed our conversations and I wish you the best.
tsongming said:
I am sure that they used low quality parts on those last batches of phone, I heard via a friend who lives in Shenzhen that they hired a 3rd party to assemble the final phones... The ones that came with 32gb drives, no nfc or quick charge etc. It sucks because they had so much potential.
Whatever you end up getting. Please do stay in touch, I have enjoyed our conversations and I wish you the best.
Click to expand...
Click to collapse
This puppy is not out yet. I figure it's got one last hurrah before I throw in the towel. I've been shopping around for a phone with similar performance for around the same price but from the current generation of phones and I've not come across anything else. At least not in the same price range. Performance is very important to me and I just can't take a downgrade. I guess I'm stuck with it for a while.
Sent from my LeEco Le Pro3 using XDA Labs
twistyplain said:
This puppy is not out yet. I figure it's got one last hurrah before I throw in the towel. I've been shopping around for a phone with similar performance for around the same price but from the current generation of phones and I've not come across anything else. At least not in the same price range. Performance is very important to me and I just can't take a downgrade. I guess I'm stuck with it for a while.
Sent from my LeEco Le Pro3 using XDA Labs
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Click to collapse
Its good that it's still working for now. Unfortunately you probably only have 4 to 6 weeks before it stops working completely. I was thinking about you situation and made the list below of additional options/good deals.
The Snapdragon 665 has similar performance to the Snapdragon 821 and the Note 8, (the version with the SD665) can be had for under $200 : https://www.amazon.com/Xiaomi-Displ...keywords=Snapdragon+665&qid=1573874157&sr=8-2
If you can spend a just a little more the Mi8's price has dropped to $250, https://www.amazon.com/Xiaomi-6-64G...ef=sr_1_1?keywords=Mi+8&qid=1573874317&sr=8-1 and I can't recommend it enough. It's definitely my most favorite phone that I have owned and I know that you care about the camera a lot. I can promise that the Mi 8 has one hell of a great camera, and stock camera, is absolutely fantastic, especially with video. In fact, I prefer it for video over the latest Pixel 7.XXX Camera and yes it does Astrophotography.
As I mentioned before the A3, is much better than you would ever expect and you can find them for $150.
If budget is a primary concern: It is definitely worth looking at among the best new phones for the money. Plus the bootloader is easily unlocked with no waiting period. if you want a new phone for around $150. I honestly can't think of a better phone, and as I mentioned my daughter has this phone, so I have actually used it, and I am telling you, it's damn good.
Another option is buying a used 128GB Pixel refurbished $120
I have seen them for as low as $75, or you could buy a One Plus 3T
Edit: I just now found this phone and although it has a mediatek processor, its brand new , has Android 9.0 , 4gb ram, 64 gb hd space and it's just a little over $100 UMIDIGI Power This may be the one, if you can deal with processor but there's a lot of people who say that this phone is great, I dont know if you can use roms, but I have heard that it doesn't have bloatware, so it be a smart buy. Edit : The $118 price is a lightning deal, and the price will go backup to $139 by the time you read this. In that case, I would personally avoid it, but I am am a little biased against mediatek for reasons. Mostly heat and poor battery life.
tsongming said:
Its good that it's still working for now. Unfortunately you probably only have 4 to 6 weeks before it stops working completely. I was thinking about you situation and made the list below of additional options/good deals.
The Snapdragon 665 has similar performance to the Snapdragon 821 and the Note 8, (the version with the SD665) can be had for under $200 : https://www.amazon.com/Xiaomi-Displ...keywords=Snapdragon+665&qid=1573874157&sr=8-2
If you can spend a just a little more the Mi8's price has dropped to $250, https://www.amazon.com/Xiaomi-6-64G...ef=sr_1_1?keywords=Mi+8&qid=1573874317&sr=8-1 and I can't recommend it enough. It's definitely my most favorite phone that I have owned and I know that you care about the camera a lot. I can promise that the Mi 8 has one hell of a great camera, and stock camera, is absolutely fantastic, especially with video. In fact, I prefer it for video over the latest Pixel 7.XXX Camera and yes it does Astrophotography.
As I mentioned before the A3, is much better than you would ever expect and you can find them for $150.
If budget is a primary concern: It is definitely worth looking at among the best new phones for the money. Plus the bootloader is easily unlocked with no waiting period. if you want a new phone for around $150. I honestly can't think of a better phone, and as I mentioned my daughter has this phone, so I have actually used it, and I am telling you, it's damn good.
Another option is buying a used 128GB Pixel refurbished $120
I have seen them for as low as $75, or you could buy a One Plus 3T
Edit: I just now found this phone and although it has a mediatek processor, its brand new , has Android 9.0 , 4gb ram, 64 gb hd space and it's just a little over $100 UMIDIGI Power This may be the one, if you can deal with processor but there's a lot of people who say that this phone is great, I dont know if you can use roms, but I have heard that it doesn't have bloatware, so it be a smart buy. Edit : The $118 price is a lightning deal, and the price will go backup to $139 by the time you read this. In that case, I would personally avoid it, but I am am a little biased against mediatek for reasons. Mostly heat and poor battery life.
Click to expand...
Click to collapse
Tony, you're among very few people I know who are invaluable to communities like these. I'm always impressed by how easily you go out of your way to help community members at XDA. Thank you so much for always being helpful even when you don't have to be. If I had the means I would buy you several cases of beer (or whatever non-alcoholic beverage you like) just to say how much I appreciate you. But for now I can just say THANK YOU!! From the bottom of my heart.
Out of all the options you gave me just now and a few days ago, the brand new Mi A3 is the best option by far. Refurbished is a no-go and yes, I hate Mediatek too. Been there, done that, but once you've got a taste of Qualcomm, there's simply no going back. I'm inclined to go for the A3 because of its AMOLED screen, UFS 2.1, decent camera, and, most importantly, it's price-performance ratio. It doesn't beat the A2 in performance but it more than makes up for it in the additional features.
I am going to keep the pro 3 as long as I can to see if prices drop even more (I'm all about the value). It's only my charging port that's gone so I'm taking out the battery and charging it externally for as long as I can. Everything else works normally. I'm also on my last ROM for this phone -- I can't flash another one because I changed to TWRP 3.2.1 which doesn't see my internal storage anymore (encryption).
Sent from my LeEco Le Pro3 using XDA Labs
tylerciggy said:
What ? $30 usd ? I've seen it in $2.5 for 2 boards, well, not original of course.
You just need to check that it has the extra IC, because there are ones that doesn't has it... although I don't remember what was for that IC, but you can easy see it that some boards just are missing a chip.
As for the cable, I'm using some EFFE cables (EFFE is the brand) and they are working wonderfully, I bought 3 for $7 usd, they plug in fine and stay in too, they were recommended to me by a friend and I'm very happy with them. They even stop giving charge to my dead phone because they detect somehow that there is a short, well, at least that is what my usb meter tells me, although I don't know how do they manage to do that, I don't really think they have an IC in them.
Click to expand...
Click to collapse
Sorry I hadn't seen this post. The cheaper boards tagged as "copy" boards don't have working quick charge or ability to connect to pc for mtp file transfer. They're only good for slow charging and sometimes even that is hit or miss. The boards that cost between $25 and $30 are original leeco boards. Probably not brand new but original. They have all features of the original like quick charge, mtp, otg, cdla and everything else the new phone could do. I wouldn't even consider going close to the cheaper "copy" boards.
I had a single 50 cm baseus USB cable that i bought for around $4 and it was of very good quality. It even supported usb PD and it was built like a tank. Just holding it gives you confidence that it's gonna last a while. Even the board getting fried didn't damage the cable but I'm not using it again. The power pin on the usb cable changed from gold to just plain silver so it must have taken some damage. I would buy a new one to be safe.
I'm done repairing this phone for good. It's not worth the expense and there's too much uncertainty involved even after it's fixed. I could fix it and have it die barely a month later. That would be $50 down the drain. I'm not going through that again.
Sent from my LeEco Le Pro3 using XDA Labs
It seems this phone is on its last leg now. Since yesterday the proximity sensor doesn't work. I think it must be all this opening and closing up of the metal shield to remove the battery. Also, the earpiece speaker only works in loudspeaker mode now. It doesn't work in calls. I think I might have an audio related software issue because sound isn't playing even if I play a music or video file. I have flashed another ROM but this behavior remains. Could this require me to flash persist?
Edit: The earpiece and proximity sensor are acting up because of the damaged USB board. Both work well when I use an app that tests hardware features. They are failing to work for phone calls and video playback because the phone is detecting that I have earphones plugged in. I figured this out when I reflashed a new PIE ROM and saw the headphone icon is always displayed on the status bar even without anything connected to the port. I guess the board getting fried messed up with jack detection.
@tsongming Please tell me if this motherboard is le pro3 x722 or le pro3 x720.
https://drive.google.com/file/d/1DD0JQRZe4t4KOmedt0eEThaGEOKBH3AZ/view?usp=sharing

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