Develop Bugs

The Cause Of Screen Flickering With A "Possible Solution"

Many One X owners, including me, has be having from display/screen issues that are quite annoying. And apparently, none has a definite answer as to what the main cause is. hTC has exchanged all those faulty devices, claiming it's a "hardware" issue...while in fact, it's their stupid back covers...i'll explain as we speak.
First, to know what screen/display problem i'm talking about, please refer to this Video.
Few days ago, i got my hands on a "Dead" One X...but i just refused that fact...because it just works! but no screen....screen is always blank....can touch it, go to dealer and make a phone call even. Sometimes the screen turned, sometimes, and it was like in the video, exactly like it.....so what's the problem?!
yesterday, i'll be honest, i got mad at this phone and held it with a tight grip...my finger happened to press just above something...and the screen turned on! worked great in fact! i was astonished! it just worked....but, oops, i turned off screen, then when wanting to turn it back on...blank...
I kept pushing on the back casing of the phone, trying to find the same place that made the screen turn back on...and viola, same place pressed on, screen back on.
Wanna know what's causing all of this?
Here you go:
Click me!
And those connectors Should be in good contact with this on the back cover
Click me too!
But you know, hTC ****ed this one up, just like it does on most devices with connectors on the back cover...*sigh*...like the sensation for example...
So what to do now?
i tried a bunch of things, and almost broke those connectors with a stupid thick aluminum foil on top of them...
also i tried bending them up, but that doesn't help either, as when the cover pushes them down, their shape will change and well...didn't work.
i also tried putting aluminum foil on the metal connectors on the actual cover...didn't help as well!
it seems only pushing on it from outside does the trick!!
i also tried pushing on the connectors together while the back casing is off, didn't work...as it seems there must be a triple connection...board, connectors, and cover...
I think the only solution would be with a new back casing? but...if hTC f****d it up with this one, wouldn't all back casing suck too?? or is this a manufacturing problem that the connectors are just short and won't connect well?!
here are pictures of how the phone turned on magically after pressing over that connector, and another of how the screen gets messed up when the, well, there's not a good connection...Thank you hTC!
Sample 1 Sample 2
Tomorrow i will buy a new back casing and report if that helped me or not.
I only came to this because i have no warranty...if you have warranty, please consider an exchange!
Oh, and finally, i was able to get into bootloader, first time i saw that screen! always has been blank!...pushing on the connector also did the trick.
Finally!
Soooo...comments?
If anyone has an idea on how to make the back casing come in better contact with those connectors, please let me know.
UPDATE

Hmm, why did you put this into Q&A?

what? in a bad mood and wanna bash me?
where should i put it then? as people with such problem would come ask here, am i right?
EDIT: lol, it's all good now ^^

arabology said:
what? in a bad mood and wanna bash me?
where should i put it then? as people with such problem would come ask here, am i right?
Click to expand...
Click to collapse
Well nah, would post it into General , as this was more like a guide. I wasn't bashing.. and not in a bad mood... If anything I bumped your thread up...
Also wanted to say that those contacts and that case seems to be f..cked up in general. As next to those you have the WIFI ones which in another thread, thats in General is shown how to fix...
My first comment was a compliment and you could clearly see I was smiling as I am on my avatar smiling. No reason to get defensive...

PAGOT said:
Well nah, would post it into General , as this was more like a guide. I wasn't bashing.. and not in a bad mood... If anything I bumped your thread up...
Also wanted to say that those contacts and that case seems to be f..cked up in general. As next to those you have the WIFI ones which in another thread, thats in General is shown how to fix...
My first comment was a compliment and you could clearly see I was smiling as I am on my avatar smiling. No reason to get defensive...
Click to expand...
Click to collapse
oh well...also WIFI connectors are bad?...no wonder SIII is flying and hTC is dying...
anyway, maybe a moderator can take this thread to the general forum, thanks for pointing those things out!
and sorry i seemed mean, but many, really, many users have nothing better to do but nag...trolls
thanks ^^

Soldering would fix this!
putting two round solders on the gold plates of the back cover. i will try that tomorrow. but i fear they would squash the connectors on the board? as that's what happened when i used two tiny balls of aluminum foil....one connector got squashed by it and i had to push it back up and play with it to make it look normal again.....hmmmm

arabology said:
Soldering would fix this!
putting two round solders on the gold plates of the back cover. i will try that tomorrow. but i fear they would squash the connectors on the board? as that's what happened when i used two tiny balls of aluminum foil....one connector got squashed by it and i had to push it back up and play with it to make it look notmal again.....hhhhh
Click to expand...
Click to collapse
Moved to general forum hope youll fix it bro...
So it is a hardware fault,would never guess that...in the general forum you have a topic with the name "wifi fault" give a look on that
Sent from my HTC One X using XDA

muamers said:
Moved to general forum hope youll fix it bro...
So it is a hardware fault,would never guess that...in the general forum you have a topic with the name "wifi fault" give a look on that
Sent from my HTC One X using XDA
Click to expand...
Click to collapse
*nods* already took a look at that
will try the soldering...or connecting a wire between both connectors...one of those should work

arabology said:
*nods* already took a look at that
will try the soldering...or connecting a wire between both connectors...one of those should work
Click to expand...
Click to collapse
Like you guys would say: "inshallah" :d
Just dont rush with the opening and be carefull
Sent from my HTC One X using XDA

waw another fellow citizen
so before we go ahead and go
doooom gloooom htcccc suxxxxxxx
lets first affirm tons of people have no problems with their wifi and their screens
so yes those connectors issues whether screen or wifi are another forum of a manufacturing defect, things might not be perfectly aligned and hence the issue
the flickering issue your thread title suggests finding the source of, isnt related to this, 90% of the corruption we saw out of box on the HOX turned out to be software including the back-light flicker which HTC fixed by readjusting the LCD voltage
moving on to your question a new back cover might very well fix it unless the misalignment is on the board
but im wondering why is this pin related to the screen to begin with? the Sensation didn't have such a pin you could remove the back cover and the screen kept operating, also the disassemble photos that were posted for the HOX showed the board and screen running perfectly without the back cover
as for the stupid copper foil, make sure you don't loose it unless you are planning to make a bomb its added to distribute Tegra3 heat

arabology said:
*nods* already took a look at that
will try the soldering...or connecting a wire between both connectors...one of those should work
Click to expand...
Click to collapse
Before you do that, please check the WIFI thread. There was already one member that described that soldering or adding a wire might be possibly harmful in the long run.
Changing the electricity stuff, how its called, the resistance or something (for the antenna though)

I'm having the same damn issue (check the picture) and thanks to Arabology for the well explanation on the problem. what I did was to send my phone to the service center and they told me it will take 3 working days (today was just the 1st day) for the technician to diagnose the fault and decide whether to replace the device or to repair it.
given that its a well known defect - should I just demand an exchange for a new device just incase if they revert that they repaired my phone? because I am sure the chances for the problem to reoccur is high.
Also just so you know I purchased this phone only about 3 months ago in HTC roadshow launch of OneX in Malaysia. HTC needs to come out with really quality products otherwise they will loose all their customers to samsung & apple (I believe they already lost major % of their loyal customers to their rivals)
oh well hope to get a good news soon. will keep u guys posted.

Update:
well, My One X is just cursed, few days ago it feel off my hand and the screen got cracked. now i'm waiting for my local repair station to get hold of a One X digitizer.
ALSO, HUGE NEWS, seems i was wrong. it's not the connectors. it's the whole part where there is a copper kinda sheath over it...i guess that's where are the cores are plus the Nvidia Tegra chip??! turned out, when i push there, that the screen lights up. at first i thought it's the connector, coz that's the most reasonable right?
what could be wrong under that? well, that place can be taken off, there's a metal housing that can be lifted off....idk, nothing seems wrong there...but seriously, just a slight push lights up the screen! so now i'm using the oldest trick in the book, i put a wrapped paper at the back of the casing, just where it will push over the place i talked about, and now screen is always on....just this small push does the job!! no more flickering!
i repeat, it's not the connector nor the back casing.......only God and hTC knows what's going on...
i did further investigations and tried to relate the "push" to any connections that could be on the board from the other side, but after disassembling the phone, there does't seem to be anything on the other side of the board that needs that certain force to help the screen to light up....idk, this just boggles the mind.
...anyone has any clue?!?
BTW, phone is working great even with the cracked screen, playing Dark Meadow just fine

walker07 said:
I'm having the same damn issue (check the picture) and thanks to Arabology for the well explanation on the problem. what I did was to send my phone to the service center and they told me it will take 3 working days (today was just the 1st day) for the technician to diagnose the fault and decide whether to replace the device or to repair it.
given that its a well known defect - should I just demand an exchange for a new device just incase if they revert that they repaired my phone? because I am sure the chances for the problem to reoccur is high.
Also just so you know I purchased this phone only about 3 months ago in HTC roadshow launch of OneX in Malaysia. HTC needs to come out with really quality products otherwise they will loose all their customers to samsung & apple (I believe they already lost major % of their loyal customers to their rivals)
oh well hope to get a good news soon. will keep u guys posted.
Click to expand...
Click to collapse
i say you should demand an exchange. hopefully the device they'll give will be of a different tier of products that doesn't have that silly, unknown problem.
also, i'm pretty well sure that they won't repair your device. as i read many users regarding this issue, all of them got an exchange......seems pretty messed up. and i doubt my paper trick will hold long before this issue comes back

PAGOT said:
Before you do that, please check the WIFI thread. There was already one member that described that soldering or adding a wire might be possibly harmful in the long run.
Changing the electricity stuff, how its called, the resistance or something (for the antenna though)
Click to expand...
Click to collapse
now that i have a paper inside my back casing, i can see that my WIFI connection is not at it's best, because of the extra space it took. so i'll most probably solder all the connectors

arabology said:
Update:
what could be wrong under that? well, that place can be taken off, there's a metal housing that can be lifted off....idk, nothing seems wrong there...but seriously, just a slight push lights up the screen! so now i'm using the oldest trick in the book, i put a wrapped paper at the back of the casing, just where it will push over the place i talked about, and now screen is always on....just this small push does the job!! no more flickering!
i repeat, it's not the connector nor the back casing.......only God and hTC knows what's going on...
i did further investigations and tried to relate the "push" to any connections that could be on the board from the other side, but after disassembling the phone, there does't seem to be anything on the other side of the board that needs that certain force to help the screen to light up....idk, this just boggles the mind.
...anyone has any clue?!?
BTW, phone is working great even with the cracked screen, playing Dark Meadow just fine
Click to expand...
Click to collapse
there was some guy, who posted a youtube video of when he pushed a certain area of his screen (the front part), it would switch off!
It only did it when pushed in that area, it was literally like a second power button.
Sorry I don't know exactly what it was, just the fact that somebody else had a similar problem!

HTC repaired my phone as the screen was faulty, it had a yellow tint, when i sent it for repair it did have screen flickering, ever since its come back, with a new screen, i rooted it and also put in the NEW ARHD rom, 2.05.2 base or something, it has stopped flickering :fingers-crossed:

walker07 said:
I'm having the same damn issue (check the picture) and thanks to Arabology for the well explanation on the problem. what I did was to send my phone to the service center and they told me it will take 3 working days (today was just the 1st day) for the technician to diagnose the fault and decide whether to replace the device or to repair it.
given that its a well known defect - should I just demand an exchange for a new device just incase if they revert that they repaired my phone? because I am sure the chances for the problem to reoccur is high.
Also just so you know I purchased this phone only about 3 months ago in HTC roadshow launch of OneX in Malaysia. HTC needs to come out with really quality products otherwise they will loose all their customers to samsung & apple (I believe they already lost major % of their loyal customers to their rivals)
oh well hope to get a good news soon. will keep u guys posted.
Click to expand...
Click to collapse
Finally found someone with the exact same problem. I haven't been able to use my hox properly for weeks. Think I need to be sending back to HTC
Sent from my X10i using XDA

Finally I've got my OneX replaced with a new unit.:laugh: Hoping this will not have any sort of hardware faulty anymore.
interestingly. while waiting for my turn in the service center, I was just talking to a guy sitting and waiting beside me who came to report a problem with his OneX
and apparently its his 4th time visit to the service center. And all his previous 3 visits ended up with his OneX getting replaced each time....and each time with a different hardware issue (screen flickering / dead pixels / color faulty). Oh man....I thought the OneX was the best quality product from HTC.
and now I'm having a slight regret that I shud have just waited for another 2 more months and bought the SIII instead. God knows what other problems my OneX is going to come up with.

Hi
arabology said:
Update:
well, My One X is just cursed, few days ago it feel off my hand and the screen got cracked. now i'm waiting for my local repair station to get hold of a One X digitizer.
ALSO, HUGE NEWS, seems i was wrong. it's not the connectors. it's the whole part where there is a copper kinda sheath over it...i guess that's where are the cores are plus the Nvidia Tegra chip??! turned out, when i push there, that the screen lights up. at first i thought it's the connector, coz that's the most reasonable right?
what could be wrong under that? well, that place can be taken off, there's a metal housing that can be lifted off....idk, nothing seems wrong there...but seriously, just a slight push lights up the screen! so now i'm using the oldest trick in the book, i put a wrapped paper at the back of the casing, just where it will push over the place i talked about, and now screen is always on....just this small push does the job!! no more flickering!
i repeat, it's not the connector nor the back casing.......only God and hTC knows what's going on...
i did further investigations and tried to relate the "push" to any connections that could be on the board from the other side, but after disassembling the phone, there does't seem to be anything on the other side of the board that needs that certain force to help the screen to light up....idk, this just boggles the mind.
...anyone has any clue?!?
BTW, phone is working great even with the cracked screen, playing Dark Meadow just fine
Click to expand...
Click to collapse
Probably what's referred to as a dry joint or some other connection not connecting very well, not uncommon in electronics.
You need to get it repaired or replaced, simple as that. If it is a dry joint under one of the chips that use a ball grid array of solder points, you will never be able to sort that out yourself and it would be scrapped more than likely rather than a repair attempted for such a fault. To repair, it would need to go into a special over to heat it enough to melt the solder under the chip. Exerting pressure will just eventually make things worse as you can end up fracturing more of the soldered connections as there is little give to resist flexing.
Regards
Phil

People who experience lcd problems, check this post!

After lots of research, i finally found a solution and the cause of the problem
The dark display/vertical lines/fading is caused by motherboard.(only if the LCD is fresh bought)
After some hours, i found that the solder was "lost" and it must be reflowed!
After you reflowed the solder from the SoC, place thermal paste with Thermal pad in order to keep it fixed and cool.
*Who's the trouble maker?*
The SoC heats up pretty bad. And that's the cause. Using your phone when it's too hot, it makes the solder loose.
Using thermal paste + thermal pad after reflowing will keep the motherboard cool and it will stop the solder to "loose"
*For people who don't have money for reflow"
There's a trick called "Iron Method"
The video is in spanish, but all you have to do is to put the iron at medium (10-15 minutes) or high (5-10 minutes) on the pins.
Video:
https://youtu.be/tAq16lPT9s0
Attention!!!
DO NOT BAKE YOUR MOTHERBOARD!
It's a temporaly fix and it cause harm rather than good.

And how did you reflow?

西村大一 said:
And how did you reflow?
Click to expand...
Click to collapse
I went to a service

Johnny TDN said:
I went to a service
Click to expand...
Click to collapse
That is the proper way, yes, but for the people who don't have money to go to a service or don't have one in their city, the oven method is still a viable option.

西村大一 said:
That is the proper way, yes, but for the people who don't have money to go to a service or don't have one in their city, the oven method is still a viable option.
Click to expand...
Click to collapse
The oven method is a "live or die" for the motherboard. It either fix it or kill it
There is a method using iron. I used it on mine and it didn't break it. It "healed it" with 10%
Flickering and fade got fixed, as well as black display. If i keep going, it will fix the vertical lines too.
In conclusion , the solder is the fault one.

Both methods sound like just a temporary solution, most useful for getting your data out.
If it works for you, lucky you, but keep in mind this is just a temporary solution.
If it works for you for more than a longer period of time, than you're extremely lucky.

I have the same problem. So what would be a permanent fix solution other than resoldering the cpu to the motherboard?

Babakkardan said:
I have the same problem. So what would be a permanent fix solution other than resoldering the cpu to the motherboard?
Click to expand...
Click to collapse
A new motherboard imo

G3(D855) Blue screen error

I went to my technician already twice but the blue screen keeps coming back. I need to go back every week as the technician heats the soc with some paste I suppose. After one day of usage it goes back to blue screen then the phones becomes dead. Is there any fix for this? :crying:
Thank you for the help guys.

Replace the motherboard or heat it up with a iron

Motherboard is quite expensive. Do I need to put thermal pads as this heating method seems to fix the error temporarily.

Hiyaslalabs said:
Motherboard is quite expensive. Do I need to put thermal pads as this heating method seems to fix the error temporarily.
Click to expand...
Click to collapse
Yes definitely try putting thermal pads or plastic. Heating the motherboard is only a final temporary solution, most useful for just backing up data off the device.

engmia said:
Yes definitely try putting thermal pads or plastic. Heating the motherboard is only a final temporary solution, most useful for just backing up data off the device.
Click to expand...
Click to collapse
So if I put a thermal pad how long would the device work?Thanks

Hiyaslalabs said:
So if I put a thermal pad how long would the device work?Thanks
Click to expand...
Click to collapse
I don't know.
It might work for a long period of time, it might not.
If it works you can hope for the best and if you want to prolong the life of the phone, make sure you are not stressing the phone and using it while overheated.

engmia said:
I don't know.
It might work for a long period of time, it might not.
If it works you can hope for the best and if you want to prolong the life of the phone, make sure you are not stressing the phone and using it while overheated.
Click to expand...
Click to collapse
One thing I noticed also when I did the paper trick by putting a piece of paper on the left side of the camera the phone works for awhile too. Any reason for this why it works?

Hiyaslalabs said:
One thing I noticed also when I did the paper trick by putting a piece of paper on the left side of the camera the phone works for awhile too. Any reason for this why it works?
Click to expand...
Click to collapse
The problem is caused by bad quality solder and a phone that tends to go very hot. If you use your phone often while hot, the bad quality solder with the chip mess up after a while and causes you to lose connection.
The pressure you're putting with the paper clip or plastic helps restore the connection by pressing on the chip.
Thermal pad is best since it helps with the cooling also. Avoid metal since they conduct electricity and might interfere with the radio signals.

Strange Lg G3 (D855) issue

Hi all,
Firstly apologies for the long post but I feel the more information I can supply the better diagnosis might be made.
I was recently given an LG G3 D855 16GB/2GB phone which has a very intermittent issue of rebooting and throwing a blue screen, notably it seems after I run any app updates. I have so far done the following to try to fix it:
1: I managed to get it working long enough to get all my friend's pics and movies etc off, then performed a factory reset using vol down and power button. Phone booted up fine, I could proceed through the setup options. Took it to work and using LG PC suite upgraded to Marshmallow. No issues.
2: Updated two apps from Playstore, rebooted and got a blue screen and reboot, but eventually it came right again and I was able to use it for a while.
3: Ran another update from Playstore and got a blue screen before the update was even installed. Left it alone for about an hour with the battery out then booted up and did a factory reset again with back buttons. All good, ran through setup no issues.
4: After using it for a few days I decide to try to update again, and again blue screen and reboot. This time did not come right even after leaving it.
5: Downloaded KitKat TOT and DLL files for my specific area or zone, South Africa, and managed to get the phone into download mode then used LG Flash Tool v 1.8.1.1023 to install ROM from TOT file. All went well. No issues at all.
6: Used for about a week then upgrade to Lollipop via LG PC Suite. Again, no issues whatsoever.
7: Next day decide to do updates, updates went fine until I rebooted then blue screen, followed by green screen with the demigod kernel crash message and reboot. However, I just left it to do its reboots and after about 5 or 6 times it booted up and stayed running.
8: This past Monday I upgraded to Marshmallow using LG PC suite, no issues whatsoever.
9: Yesterday I ran one update and rebooted, blue screen and rebooting. Took battery out and left it for about an hour again, put battery back in and did factory reset using back buttons.
10: As of right now phone is functioning perfectly again.
I must mention the following:
1: I can install any app that gets wiped when doing a factory rest, like WhatsApp, Nine Email, GBoard etc with no issue whatsoever.
2: The battery is fine as far as I can tell, it lasts about 3/4 of the day under normal to heavy usage and is not swollen at all.
3: The Phone NEVER gets hot at the back, even when rebooting constantly or throwing a blue screen.
4: As far as I know it has not been dropped.
5: It is protected by the LG QuickCircle case with QI charging back.
My question after all this is, could this be a hardware (Motherboard) issue or is it software somehow? I really like this phone when its working correctly so would love to be able to use it with no worries.
Any guidance at all from the wonderful smart people here at XDA will be highly appreciated!
Thank you for your time and patience!

Blue screen is, I think related to SSD losing some contact with motherboard. You need to open the device, get the motherboard out and put 0.5 mm thermal pad on the SSD (under the EMI shield) and put the shield back. Then take a 1mm thermal pad, or 0.5 depending on your preference but I highly recommend a 1mm one to reduce the risk of running into screen fading issue, and put it on the RAM chip. Put everything together and screw the upper screws tight so that pressure is made to the chips.
You can also apply heat to the chip beforehand, while applying some pressure. In that case, I recommend you to put something on the other side, on the RAM chip so that on both chips pressure is made while the heat is being applied. You can use hair dryer but shield the rest of the boad with some aluminum foil. Try only the thermal pads first tho.
more info: https://forum.xda-developers.com/lg-g3/general/g3-hardware-problems-solved-bsod-screen-t3597086

xfim said:
Blue screen is, I think related to SSD losing some contact with motherboard. You need to open the device, get the motherboard out and put 0.5 mm thermal pad on the SSD (under the EMI shield) and put the shield back. Then take a 1mm thermal pad, or 0.5 depending on your preference but I highly recommend a 1mm one to reduce the risk of running into screen fading issue, and put it on the RAM chip. Put everything together and screw the upper screws tight so that pressure is made to the chips.
You can also apply heat to the chip beforehand, while applying some pressure. In that case, I recommend you to put something on the other side, on the RAM chip so that on both chips pressure is made while the heat is being applied. You can use hair dryer but shield the rest of the boad with some aluminum foil. Try only the thermal pads first tho.
more info: https://forum.xda-developers.com/lg-g3/general/g3-hardware-problems-solved-bsod-screen-t3597086
Click to expand...
Click to collapse
Hi and thank you for your reply. I hear what you are saying about the SSD but my question is why only very erratically and why only when I do updates? The phone works flawlessly with calls, watching movies, doing email, using WhatApp. The ONLY time I have issues that I can ascertain is when I do updates.

marcd2015 said:
Hi and thank you for your reply. I hear what you are saying about the SSD but my question is why only very erratically and why only when I do updates? The phone works flawlessly with calls, watching movies, doing email, using WhatApp. The ONLY time I have issues that I can ascertain is when I do updates.
Click to expand...
Click to collapse
I suppose because updates require a lot of storage I/O so it heats up more and that causes the solder to expand enough to trigger the cracked connection to do its job lol. It also heats up the CPU more than updating system over PC. Thermal pads are cheap. You can, however use aluminum foil just for the test but thermal pads are safer to use.

xfim said:
I suppose because updates require a lot of storage I/O so it heats up more and that causes the solder to expand enough to trigger the cracked connection to do its job lol. It also heats up the CPU more than updating system over PC. Thermal pads are cheap. You can, however use aluminum foil just for the test but thermal pads are safer to use.
Click to expand...
Click to collapse
Hi and thanks again for your reply. Well, I can tell you that it is getting worse, I had random reboots and one or two blue screens for no reason, other than just normal usage. I went to the link you provided but the links in that original post to the images no longer work, however I did find the images so just need to ask, what you refer to as the SSD is that the Sandisk 16GB SDIN9DW4 memory as in the image attached?

That is correct. It is an emmc 5.0 spec. Remember to put pressure on both sides of the board (on ssd and ram)

xfim said:
That is correct. It is an emmc 5.0 spec. Remember to put pressure on both sides of the board (on ssd and ram)
Click to expand...
Click to collapse
Thanks will do. Now to try to find thermal pads here in South Africa!!! LOL

marcd2015 said:
Thanks will do. Now to try to find thermal pads here in South Africa!!! LOL
Click to expand...
Click to collapse
You can try with something else just to test if it works haha. Then you can search for thermal pads. You should be able to find them in a computer shop.

xfim said:
You can try with something else just to test if it works haha. Then you can search for thermal pads. You should be able to find them in a computer shop.
Click to expand...
Click to collapse
Thanks I'm sure I will find somewhere. One more question if I may, do I cut the pad to fit the chip or slightly bigger or what is the best tried size for this repair?

marcd2015 said:
Thanks I'm sure I will find somewhere. One more question if I may, do I cut the pad to fit the chip or slightly bigger or what is the best tried size for this repair?
Click to expand...
Click to collapse
Yeah you can cut it in the size of the chip but it doesnt really matter as long as it isnt smaller than the chip. If you have aluminum foil at home you can try with that first. Fold it a few times until it's thick enough. Just put some tape over it in case it touches the motherboard so it doesnt short out.

xfim said:
Yeah you can cut it in the size of the chip but it doesnt really matter as long as it isnt smaller than the chip. If you have aluminum foil at home you can try with that first. Fold it a few times until it's thick enough. Just put some tape over it in case it touches the motherboard so it doesnt short out.
Click to expand...
Click to collapse
Thanks but I'll rather just do it once right, so I will hunt for the thermal pads. I'm not wanting to disassemble the phone too many times.

marcd2015 said:
Thanks but I'll rather just do it once right, so I will hunt for the thermal pads. I'm not wanting to disassemble the phone too many times.
Click to expand...
Click to collapse
Disassembling the G3 is very easy. Check the guide on youtube and you'll get the motherboard out in less than 5 minutes. Just be careful with the ribbon cables. You got two on the bottom and two cameras at the top. I recommend you to try doing this before buying thermal pads just in case I was wrong and the issue is something else.

xfim said:
Disassembling the G3 is very easy. Check the guide on youtube and you'll get the motherboard out in less than 5 minutes. Just be careful with the ribbon cables. You got two on the bottom and two cameras at the top. I recommend you to try doing this before buying thermal pads just in case I was wrong and the issue is something else.
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Click to collapse
Will do and thank you for all the help!! I will post an update soon on whether the fix worked!!

Good luck!

xfim said:
Good luck!
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Click to collapse
Well it seems there is a deeper issue with this damn phone!! I finally got the thermal pad, Artctic brand, 0.5mm but as soon as i apply the pads to the areas described and tighten up the phone simply refuses to switch on at all!!!. If I remove all screws from the upper frame and then try to switch on it does and blue screens immediately. So I'm thinking I just need to suck it up and get a new motherboard.
Thanks to all for the help with this!
EDIT:
Seems I had to leave it for a while, as it is now switched on and booted up no problem, with pads in place and screwed down. Minor issue now is it won't read the SIM card but I have also found a fix for that. Right now I'm running updates and so far all good, no blue screen yet. Will post back on Monday after I've used it for a bit.

marcd2015 said:
Well it seems there is a deeper issue with this damn phone!! I finally got the thermal pad, Artctic brand, 0.5mm but as soon as i apply the pads to the areas described and tighten up the phone simply refuses to switch on at all!!!. If I remove all screws from the upper frame and then try to switch on it does and blue screens immediately. So I'm thinking I just need to suck it up and get a new motherboard.
Thanks to all for the help with this!
EDIT:
Seems I had to leave it for a while, as it is now switched on and booted up no problem, with pads in place and screwed down. Minor issue now is it won't read the SIM card but I have also found a fix for that. Right now I'm running updates and so far all good, no blue screen yet. Will post back on Monday after I've used it for a bit.
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Click to collapse
If the pads dont work well enough, you can take the motherboard out, remove the metal shields and take some hard flat metal pieces that you can put on both ssd and ram (big enough to cover them), then put some aluminum foil big enough to cover the motherboard (to protect the rest of the board from heat) and take something like pliers to put pressure on both of the metal pieces (aim for the middle of chips). Then take a candle and concentrate heat on both chips. Switch sides every now and then for about 5 minutes. This is how I fixed both reboot and screen fading problem atleast temporarily.

xfim said:
If the pads dont work well enough, you can take the motherboard out, remove the metal shields and take some hard flat metal pieces that you can put on both ssd and ram (big enough to cover them), then put some aluminum foil big enough to cover the motherboard (to protect the rest of the board from heat) and take something like pliers to put pressure on both of the metal pieces (aim for the middle of chips). Then take a candle and concentrate heat on both chips. Switch sides every now and then for about 5 minutes. This is how I fixed both reboot and screen fading problem atleast temporarily.
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Click to collapse
Hi, thanks for the reply. No, the pads are working fine, so far, just that I had to loosen the lower screw on the volume/power panel in order to get the SIM card to read. But otherwise so far so good

marcd2015 said:
Hi, thanks for the reply. No, the pads are working fine, so far, just that I had to loosen the lower screw on the volume/power panel in order to get the SIM card to read. But otherwise so far so good
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Good to hear!

xfim said:
Good to hear!
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Hi I would just like to post an update to this,. After much battling I have finally managed to get a working phone that seems stable so far after 4 days. I'm using a 0.5mm pad on either side as the phone simply will not switch on with a 1mm pad on the screen side. Also, I had to screw down the screw I loosened at the bottom of the volume rocker/power assembly, the SIM card is still working however the SD card no longer reads but that's not a serious issue as the phone has 16GB onboard and I'm not using it for major games or movies or anything like that, purely for work email, calls/SMS, WhatsApp.
So here's hoping it will now continue to work and i will post here regularly with any updates and/or issues if that's acceptable to the moderators.

Bare in mind, all of these fixes are not permanent, for a permanent one you need a new MOBO

Is Reballing a DEFINITIVE solution to LG G4's bootloop?

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
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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.
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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:
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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
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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.
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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
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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
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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
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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?
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Leave it alone lol
Calibrates after 5 charges

deltadiesel said:
Leave it alone lol
Calibrates after 5 charges
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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'.