LG G4 (TMO H811) just up and died - G4 Q&A, Help & Troubleshooting

So yesterday morning, I was going to put my phone on my wireless charging pad...nothing new in the mornings. I set it down, the notification led on the pad came on and the LED light on the phone came on. Within two seconds or so, the light on the pad started alternating green/red and the phone LED just went off. The phone instantly powered off.
I was not able to power it back on, full reset the device, nothing. A new battery didn't fix it, unit was not seen by my computer....it's dead Jim.
I talked to LG and they said it was a bootloop issue with the V1.0 hardware. I told the lady that it was not bootlooping...it would not power on at all...period...zilch...nada...nein. She said it must be a different issue and that since it isn't bootlooping, I must have gotten it wet (both the phone and battery moisture sensors are solid white) and that it fried the internal circuitry. Awesome troubleshooting there LG (morons).
I called TMO, they are exchanging it for the $20 replacement fee. All is well in the world I guess. I have seen and read a lot about this issue and figured I was just one of the lucky ones that didn't have a bootloop issue. Something bit me though.

I have 2 lg g4 h818p ...one each for my wife and I.
Both of them had the motherboard conk out and replaced within the first 6 months.
They just went dead (at different times obviously ) , glad the sets were under warranty.
Hope the replaced motherboards don't have the same issue down the road

bendsley said:
I talked to LG and they said it was a bootloop issue with the V1.0 hardware. I told the lady that it was not bootlooping...it would not power on at all...period...zilch...nada...nein. She said it must be a different issue and that since it isn't bootlooping
Click to expand...
Click to collapse
I've seen a few like this. Emphasis on few.
No boot loop so does not technically qualify as bootloop but otherwise dead and unrecoverable.
That too with no fiddling as you can't fiddle around at all with MM.
Like its bricked but you did not brick it.
Something bit me though.
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Click to collapse
Your backup routine will be more regular ?

Related

Blank display

Hi,
When I tried to unlock my phone this morning the screen didn't turn on so i figured the battery died on me. I connected it to the charger but it didn't do anything. A few seconds later i suddenly got a notification sound and the LED started blinking but still the screen wouldn't come on. I tried tapping some random places in the screen and I noticed it responded to my touch, by now I started getting scared the screen might have died on me.
I pulled the battery and tried to reboot the phone, same problem, screen responds but doesn't display anything, not even the google logo.
Then I tried getting in the bootloader, same thing here, got into bootloader but screen didn't display anything. I figured it might be a problem with the bootloader or whatever so I flashed the factory image from Google but the problem persisted.
The phone was working perfectly yesterday and it hasn't dropped on the floor or got wet, it just sat on the table all night long.
So is there anything else I can do? Has my screen just died randomly on me?
In case the screen needs to be replaced, will Samsung do this for free? I'm not sure if it matters but I'm in Europe.
Anyone? I'm quite desperate here.
scipicore said:
Anyone? I'm quite desperate here.
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Click to collapse
anyone get any idea with this problem i'm having the exact same problem
phone was fine untill yesterday evening (i've had the phone just over a year), i got a message ( i heard the notification sound ) went to unlock the phone and nothing, so i tried pulling the battery, restart the phone and still nothing
led works on the phone, it boots play sounds recieves message etc and the touch and feed back works so you can push random buttons but the screen is completely blank
no cracks, no water damage
Twisted701 said:
anyone get any idea with this problem i'm having the exact same problem
phone was fine untill yesterday evening (i've had the phone just over a year), i got a message ( i heard the notification sound ) went to unlock the phone and nothing, so i tried pulling the battery, restart the phone and still nothing
led works on the phone, it boots play sounds recieves message etc and the touch and feed back works so you can push random buttons but the screen is completely blank
no cracks, no water damage
Click to expand...
Click to collapse
I sent my phone in and it turned out I had water damage, even though I'm sure it never ever came in to contact with water or even moisture. Had to buy a new one, no refund or anything. Even had to pay €200 to get my broken phone back.
I hope you have more luck than I did.
You got ripped hard, water damage is an excuse the telcos use to get out of replacing your device, its a widespread practise, sounds like your phone had a hardware fault and should have been repaired or replaced.
If it happens again insist on proof and explain you know your rights and will pursue a formal investigation with whatever is the relevant consumer authority in your region.
Dont take no for an answer and be prepared to politely but firmly argue for your rights and also escalate the complaint if not satisfied with the sellers response.
It is not unusual for mass produced devices to have hardware faults, but water damage is a total copout by the seller.
For example it is estimated that between 0.5% and 2.5% of sgs3 i9300 devices have faulty batteries which leak and damage internal hardware, and typically the seller will blame the buyer for water damage (more $ for them) rather than replace the device (no $ for them).
sent via xda app from starkissed maguro gnex paranoid beta9

Blue screen after serious slow down

In case anyone else suffers the same symptoms - a couple of weeks ago, my G3 started running really slowly (and possibly a bit hotter).
Booting from cold seemed to take a long time and the ui starred freezing temporarily on a regular basis.
I was waiting for an ota marshmallow update and hoped that would fix whatever was making it go slow.
I was wrong.
The other night, I was using it and the screen went bright blue and the phone then started boot looping. Sometimes it only got as far as the LG logo and other times it for all the way to the lock screen (on a couple of occasions I could get to the desktop and use the phone 'normally'). Every time it ended up blue screening and then rebooting.
Ultimately, it was dead and despite managing a full wipe, nothing fixed it.
As a phone, when it worked it was ok but cracking screen, poor call quality (only realised that when I got a different phone) and general slow downs (possibly related to overheating (and I could only infrequently increase screen brightness to full because of the warning about overheating) means that I think this phone has been fair rather than excellent.
Its motherboard problem only way to fix it is replace it with new one
Sent from my LG-D855 using Tapatalk
That's what I thought. Phone is well over a year old, so just got a different one.
Good feedback for anyone who has similar symptoms.
I have the same problem, went to the LG service center in my country
and yes they said that I had to replace the motherboard, because the IC power is broken
the cost is around $160, 1/3 the phone price when I bought it mid 2014
I have only used my phone for only 1.5 years and very disappointed with the quality of G3 phone
same **** happened to me, they replaced the motherboard, luckily it was still under warranty.
Don't update its motherboard problem
Same here blue screen came and phone is dead. Gone to lg service center and they told to replace the motherboard yesterday.
The whole phone now only cost 1000AED and they are telling me that motherboard replacement is gonna cost me 950AED .what the heck, better to buy a new phone. Atleast i will get one yeAr warranty new phone for same cost hehe...
The updation of lg g3 software is the main reason for this, so dont update the phone to new version of android pls.
Sorry to unbury such an older thread.
I just got a new (sic) LG G3 D855. A few minutes after the official LG updates were installed, the screen began flickering, with intermediate blue screens, and consecutive reboots. After a BSOD the screen went dark, and the phone seemd to be powered off. I am not sure about this, but I could not power it on again for approx. 20 minutes. Then it was starting again, but I feel very uncomfortable about it and plan to ask for a replacement, since I have full warranty.
Before I return it:
How to I find out the manufacturing year of the motherboard and/or if there is a newer revision or something? Is it printed on the motherboard or readable via an app (e.g. CPU-Z or similar - if I can start it at all)?
Any help in this regard is very much appreciated. Thank you.
Wishing you all a great year 2020!

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.

TMobile LG G4 Turned off and wont come back on

This is a Fully Stock, Fully OTA updated, TMobile LG G4 "May" Build.
Ok, irony is to follow... "I just finished paying off my LG G4" and a couple days ago... I woke up, unplugged the phone, Opened Hangouts and started a text message. The screen completely locked up within seconds. I pushed the power button to turn the screen off and it did so. I pushed it again to turn the screen on. It took a few seconds before coming back on and seemed sluggish so I powered down the phone. At this point the phone was DEAD.
I tried charging it, even though it charged all night, but nothing even shows on the screen. I tried booting into safemode/recovery nothing at all happens. I tried another battery from a working LG G4 and nothing at all. Nothing on the screen, no vibration... Just Darkness. Water sticker is white and there has never been any water or physical damage.
-Bought this phone from TMobile for use on Family Mobile. TMobile says "because it is not in use on our lines we cant do anything".
-TMobile goes on to say that the warranty is up anyway...
-I have seen that this is a Known issue by TMobile and LG all over the internet with people getting replacements
Questions:
-Should I try to contanct Family Mobile or would that be a waste of time?
-Should TMobile replace a product with a known defect even after warranty?
-Should LG replace a product with a known defect even after warranty?
-If those fail are there ways out of warranty to revive the phone?
Suggestions Please and Thank You!!
I sent the phone into LG and it took them 5 days to come back with a diagnosis. The results were shocking coming from a company that I personally swore by for years now because of their product quality.
The diagnosis was "Touch Window needs replaced". I almost punched a wall when I saw that. I have a tiny hair line scratch at the top pf the Digitizer from my keys and that is their Diagnosis for why my phone shut off and wont turn back on. They gave me a price to fix the screen and explained nothing about the power issue. Contacting them only furthered my frustration as all 5 members of Customer Support played the same broken record. I asked the following; "What is being done about the power issue?", "Why cant you just fix the power issue?", "What was the cause of the phone not powering on?", "Why cant you tell me why the phone wont power on?". They all repeated; "We fix the whole device in general especially if it has physical damage or defects", "You can choose to pay for the repair or not pay", "The touch screen was found to be damaged or have cosmetic issues". They refused to even acknowledge the power issue because of this tiny little scratch that allows them to hide the real issue.
So now I have to decide either to pay them an absurd amount ($153) to replace the Digitizer and let them tuck the power issue under the rug -or- Have them send it back to me, replace the digitizer ($40 actual cost) myself and send it back and see what they charge and have to say.... I am willing to bet at that point they come back and say, "Your phone is out of warranty we can offer you a refurbished phone for $153". Which, is probably what they are actually charging me for and not a Touch Window because I am guessing the main board is defective and that is why they don't want to talk about it.
I am very upset with LG over this... bad Customer Support when they are trained to repeat the same answers over and over to different questions and never really answer the questions.

G3 Freezing, restarting into bootloop

I'm back again XDA. Even more G3 problems!
So since the last time I posted, I've replaced the board on my G3. Everything was great up until the SIM reader quit out. Switched to an HTC One M9 and boy is it terrible. So I use the G3 for music, games, etc. Didn't bother rooting or anything. Running VS9854BA. It's always on Airplane mode with WiFi enabled, I try not to let it overheat since the WiFi went to **** on my last board. And what do ya know, as I was typing up a comment on Facebook the thing just freezes up, makes some ****ed up screeching noise, and tries to restart. I get boot looped and notice a red and blue led. So I pull the battery, hold down the power for a bit and throw the battery back in. It boots up. A few minutes later the phone freezes and does the same thing. The battery level was around 80% on this battery. I try another OEM battery and it works fine for the rest of the night. However, the phone is now doing the same thing with that battery. I've only had issues with non official batteries in the past. For example, one battery I have will make the phone reboot after using the camera. Anyways, I'm iffy on purchasing a new battery. I don't want to pay $6-10 on a POS that was made in 2014. And I don't want to gamble on buying a $15-20 OEM battery from LG, as it may still be old and degraded; or won't even solve the problem. I tried contacting LG to see if I could get any insight, or to see if they are selling newer manufactured BL-53YH batteries and have yet to hear from them. I have noticed most people have issues with LG phones two months after their warranty ends. I was surprised to see the G3 last a few years and would like to get some more time out of it. If my 2011 galaxy nexus still works flawlessly, so should the G3. In the meantime I put a little noctua thermal paste on the EMMC and was baffled by the temperature decrease in cpu z. It still doesn't fix anything though. Any thoughts here? Should I gamble and buy the battery or is this hardware failure?
TLDR: LG devices may be time bombs and their support sucks.
There seems to be a lot of bootloop/battery issues this week. I hope device is not a "time bomb".
Sent from my K00C using XDA-Developers Legacy app
n00dle24 said:
I'm back again XDA.... Should I gamble and buy the battery or is this hardware failure?
TLDR: LG devices may be time bombs and their support sucks.
Click to expand...
Click to collapse
"...as I was typing up a comment on Facebook..."
Maybe it's just the universe trying to tell you that Facebook sucks?
Kidding aside - it sounds like your phone is dying a slow death. Normally if you had just the restart issue I would suggest a new battery(even with the reboot at 80% - old batteries get weird), but with the sim issue combined with the screeching noise red/blue light reboot - which usually delivers a green screen kernel panic reboot - it sounds like the weirdness that occurs when a G3 dies.
If it were a bad battery I think it would just shut down, reboot to the LG logo, and then bootloop(that's what mine did when it failed); but failing G3 batteries do some weird things sometimes. To t-shoot a bad battery I guess you could try plugging the phone in and using it while charging to see if any troubles occur; if not, then invest in a battery. I can't say that is a fool proof way to check the battery though...the best way is always to replace it.
If it's (what is believed to be) a solder issue on the board - which a lot of G3 users have reported as the phone has aged - you can try the paper trick to create enough pressure on the chips to complete the solder connection or even using some heat to try and get some solder to reflow, but those are generally only temporary fixes...the issue usually comes back in time. It may be worth it to try the paper trick to help you troubleshoot your issues - if the trick fixes it briefly then you know it's a hardware issue and you can make a decision from there. If you have one of these solder issues it's just best to move on.
So flip a coin: replace the battery for @$20, or say eff-it and get a new phone; sounds like a tough decision...glad I'm not making it - yet.
*If you don't know what the paper trick is just search the G3 forums...screen flicker threads usually mention it and there are other threads out there too.

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