Develop Bugs

LG G4 (H815) variant shuts off and doesnt respond........ Need photos recovered :(

Hello guys,
I have a LG G4 H815 variant which shut off while talking on the phone. I did not install any new apps or anything new but got OTA update from LG 2-3 days before this happened.
I removed the battery and after I kept it back, and sometimes LG logo comes and then phone shuts off. Few times it also rebooted like 3-4 times by itself but did not pass the lg logo screen.
Now comes the most important thing, we recently had a baby (5days ago) and have all the photographs and videos of birth and delivery in this phone. I need that to be recovered, so please help with this first and then may be fix the phone next.
So hard reset of the phone is not an option I suppose. I also tried connecting to windows/Mac and system doesnt recognise the phone
I really appreciate any help from you guys.

sounds like you have the lg bootloop bug people have kept trying and eventually the phone has started
Sent from my LG-H815 using Tapatalk

nexy33 said:
sounds like you have the lg bootloop bug people have kept trying and eventually the phone has started
Sent from my LG-H815 using Tapatalk
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Click to collapse
I have been trying for past 3days removing the battery and charging for whole day, nothing helped till now

Ermm, with the bootloop issue only one thing helped so far... Send it back to repair (I did it as well)

davebugyi said:
Ermm, with the bootloop issue only one thing helped so far... Send it back to repair (I did it as well)
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Click to collapse
So do you mean to send it to UK..... I called US LG support, they said to contact UK support.... they said, they can only send packages to Uk to send the phone for repairs. What about the data on phone? I need the very important photos of my newborn.

try the freezer method
http://forum.xda-developers.com/showpost.php?p=64905142&postcount=1

akusbharat said:
So do you mean to send it to UK..... I called US LG support, they said to contact UK support.... they said, they can only send packages to Uk to send the phone for repairs. What about the data on phone? I need the very important photos of my newborn.
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Click to collapse
I brought the phone back to the shop where I bought it, as I had a 2 year warranty with them. They sent it to one of their repair centers and in 8 days it was fixed for free.
I suggest to try the freezer method posted above and hopefully it will boot and you can manage to get your photos off the phone.
In case it won't boot all or just sits on the LG logo, then it is hard to recover as (probably) they have to replace the whole motherboard (like in my case) and it is unlikely they will bother with recovering data. However you may ask them very nicely, but they might just ignore it.

Bootloop hardware failure and LG's incompetent repair

I finally ran into the bootloop problem that is common with early G4's (if you have a serial number that starts with 505, you're basically gonna be screwed at some point). Since it's a hardware issue that LG acknowledges, I sent it back to the factory under warranty, waited for two weeks using my old backup phone, and finally received it back today.
Ready for the fun part? They had repaired something that wasn't broken (kind of like surgery on the wrong body part) and had not touched the bootloop issue! They fixed "No power with cable" by replacing the flash memory. This was never an issue. The frustrating thing is that they didn't even restart the phone to find out if it had been fixed, because if they had it would have gone right back into the bootloop. Arg!
The G4 is now back on route to LG. I said they should give me a new phone, but customer service said they only do that if it cannot be repaired. I'll keep my fingers crossed that they go to the trouble to turn on the phone after "repair" this time.
Thanks for letting me rant!

I have currently my 2nd G4 that has run into this issue. This one has serial number starting with 506, so I guess it might stem a little further into production also. This is driving me nuts, I could not send my phone to LG because of how long it takes so had Verizon send me one and of course I run into the same exact issue with the bootloops. Last time I was able to still flash kdz's, this time won't even go past the LG boot screen. Really wish I could wipe my data at least.

I can attest to LG's incompetence. On March 2nd I sent in my G4 because it was bootlooping. Sent it in no problem, and after about a week I received my G4 back with the problem "fixed" by flashing the memory. Well guess what, it wasn't fixed. As soon as I turned it on, it started to bootloop again. I called LG and they arranged another RMA. Sent it back again, and about a week and a half later, I had my G4 back. This time they "fixed" it by replacing a capacitor. Guess what! Still not fixed. It still continued to bootloop. Called LG extremely angry and filed a complaint. LG arranged another RMA. At this point I had been without my phone for over 20 days. Finally, LG fixed it properly by replacing the motherboard. Now its fixed and it only took them over a month to figure it out.
While I applaud their easy RMA process, whoever the idiots are actually doing the repair are just that.. idiots. Its as if they don't even turn the phone on and ensure it fully boots up before they claim its fixed and ship it back. Whats worse for me is my phone was rooted on VS986B. Got the phone back on Marshmallow 24C and it took the update to 25a overnight. Now I'm stuck with no way of rooting.....
When you get your phone back from LG, chances are it will be on 24C. If you plan on rooting, do so quickly and downgrade.

dcorrea said:
I can attest to LG's incompetence. On March 2nd I sent in my G4 because it was bootlooping. Sent it in no problem, and after about a week I received my G4 back with the problem "fixed" by flashing the memory. Well guess what, it wasn't fixed. As soon as I turned it on, it started to bootloop again. I called LG and they arranged another RMA. Sent it back again, and about a week and a half later, I had my G4 back. This time they "fixed" it by replacing a capacitor. Guess what! Still not fixed. It still continued to bootloop. Called LG extremely angry and filed a complaint. LG arranged another RMA. At this point I had been without my phone for over 20 days. Finally, LG fixed it properly by replacing the motherboard. Now its fixed and it only took them over a month to figure it out.
While I applaud their easy RMA process, whoever the idiots are actually doing the repair are just that.. idiots. Its as if they don't even turn the phone on and ensure it fully boots up before they claim its fixed and ship it back. Whats worse for me is my phone was rooted on VS986B. Got the phone back on Marshmallow 24C and it took the update to 25a overnight. Now I'm stuck with no way of rooting.....
When you get your phone back from LG, chances are it will be on 24C. If you plan on rooting, do so quickly and downgrade.
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Click to collapse
When they finally replaced the motherboard, did the physical serial number on the phone change?

enduser23 said:
When they finally replaced the motherboard, did the physical serial number on the phone change?
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Click to collapse
No, that's the same. The board was replaced, but the plastic piece that holds that battery, which is on top of the board, was not replaced.
Happy to report that all is well after the second repair. Came back with 6.0, but I downgraded to 5.1, rooted, and have just about everything working again (can't get Exposed to work, but I'm sure I'll figure it out eventually). Nothing like spending 3+ weeks on a 2011 Droid Bionic to make me appreciate my G4!

Would one of you care to explain how you contacted LG to set up the repair. I have filled out the online form twice and have never heard a word. Thanks.

illek46 said:
Would one of you care to explain how you contacted LG to set up the repair. I have filled out the online form twice and have never heard a word. Thanks.
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Im not sure if you are in the U.S., but here's their support phone number 800 243-0000. They are usually pretty easy to deal with over the phone.
I am still kicking myself that I didn't downgrade as soon as I got my phone back. I hate not having root anymore.
---------- Post added at 01:02 PM ---------- Previous post was at 12:59 PM ----------
harpdoc said:
No, that's the same. The board was replaced, but the plastic piece that holds that battery, which is on top of the board, was not replaced.
Happy to report that all is well after the second repair. Came back with 6.0, but I downgraded to 5.1, rooted, and have just about everything working again (can't get Exposed to work, but I'm sure I'll figure it out eventually). Nothing like spending 3+ weeks on a 2011 Droid Bionic to make me appreciate my G4!
Click to expand...
Click to collapse
Droid bionic.. I wish! I originally dug up my old Galaxy Nexus, but the battery life was so bad that I swapped it out for my son's old Droid Razr. Of course, I had to safestrap it and put a custom ROM on there because I have a LG G Watch R and android wear was not compatible with the factory software on the Razr. It was a pretty horrible experience overall. I'm glad I have my G4 back, but I really miss root.

You can still downgrade to 5.1 and root. Mine was on the latest version when it came from the factory and I didn't have any problems with the process.

Same thing happened to me. It took 3 RMA's in a row and about 60 days until they finally fixed it. They scratched it, too. OP, I highly recommend you start documenting everything. LG CS will also tell you escalating will get you nowhere; but with persistence you can get a hold of someone. You can only go up to a supervisor, and that's it. LG has specifically designed their CS (including their facebook and twitter) to contain and ignore you.

In less than 1 calendar year i am on my 3rd phone.. Figuring the 1st phone was a flop... serial numbers since my 1st phone are 511 and 505. So yeah.. im debating at what a ticking timebomb i havenow. The 3rd one came w/ MM installed but I downgraded to LL to keep root. Im sure it goes w/o saying that I'll not buy an LG phone ever again.. and this was my 1st one. They could offer to upgrade me to a G5, but honestly there are NO guarantees this sort of thing will happen again. You break trust you pay the price, look at Samsung w/ the no MicroSD card fiasco.

LG just accepted my 15 month old G4 for warranty repair
Even though my phone is 15 months old, LG has accepted it under warranty repair. When requesting repair I wrote that it was the bootloop issue but their repair confirmation states the issue is "No Power with Cable". I hope they fix the correct issue! BTW, my serial number began with 511

The US warranty is 18 months, so LG didn't do you any favors. I have three of these POS phones to get warranty repaired and hope they fix them correctly the first time.
keithfur said:
Even though my phone is 15 months old, LG has accepted it under warranty repair. When requesting repair I wrote that it was the bootloop issue but their repair confirmation states the issue is "No Power with Cable". I hope they fix the correct issue! BTW, my serial number began with 511
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Click to collapse

I just got mine back today june 1st 2017, Sent G4 for bootloops 1st time a week ago. No power / Mainboard was replaced. it was purchased november 2015 and Serial number is 511 which is right after the supposed bad batch. I got the phone back in the same great condition it left. The repair guy reported phone condition has minor scratches when it doesn't, Not sure why he would report that. So far its working great, like a new phone. I can only hope this board has been redesigned to not fail under a year and a half, but thats just wishful thinking. Everything was completely free even though phone was like 5months+ after its warranty. Even though costumer service on phone sounded like she was doped out on crack and ignoring all my questions, it was still ez to do and I got it back fast. The IEMI number or whatever was also changed and they put a new sticker over top the old one under the battery. I tried checking the number on that website and it doesn't even have it registered so i can only hope its brand new.

Got a couple of VS986s back from bootloop warranty repair. Mainboards supposedly repaired, but IMEI stayed the same and nothing on label under battery changed . I recall other people mentioned changes to label information.

Last week a representative told me the current warranty on the G4 for this issue is 27 months from date of manufacture or 24 months from date of purchase.
Mine has S/N 508. It started bootlooping while I was pooping (browsing Facebook on Chrome browser) on June 5.
I attempted the hot-air rework station fix 5 times (for processor on mainboard), and that worked on the 2nd, 3rd, and 4th tries. Each time the phone worked for up to ~4 hours. On the 5th try the phone no longer booted or even showed the LG logo.
It's en-route to LG right now. I opted to ship it without battery or back cover (my back cover has a wireless charging tag).
Using my old Samsung Galaxy S3 running an AOSP-variant on 4.4.2. Actually isn't a bad phone.
My old LG G2's touchscreen no longer responds to touches on roughly 50% of the screen... can't even unlock it via pattern lock any more.
Thinking LG won't be the next new phone I buy...

Well, my G4 is on its way back to me after LG's warranty repair. Turn-around time at the LG service facility was ONE (1) DAY!! So that was super fast. Should get it tomorrow or the day after. Contemplating putting it back up for sale or trade-in though... it's basically gonna be a virgin device that will require root, xposed, restoring apps/messages/call log/etc., then adjusting everything else to my liking. Would be a shame to do all that work and then the bootlooping problem happens again.

Another G4 Bootloop thread

Woke up last saturday morning, grabbed my phone on the way outside and it was off, dead battery, went and grabbed the spare from the charger popped it in, and hello infinite boot loop death.
Ive tried the freezer trick, but waiting 15 mins for 63 apps to optimize each time is death.
I called LG spent 2 1/2 hours on hold, disconnected 3 times, and when I finally got a supervisor to speak with I had to convince them the boot loop was a known issue and they would call me back on Monday. Never got a call.
Following day went into Best Buy where I purchased the phone and it was 11 months old, 505, they advised me to go to Verizon, Walked over to the verizon store a few doors down and had a great customer service experience, they took everything I said for face value, offered to send me a 'Like New' replacement, got that phone 2 days later, started up, and its a bigger piece of **** than my boot loop brick. Wont stay on for more than 5 mins, sometimes it boot loops, other times it doesn't, locks up harder and faster than a frogs bhole ..
once again went back to Verizon, again amazing customer service, now on my 3rd LG G4 in the mail, 2nd Like New..
I am pretty done with G4 completely.. and I can't just upgrade because I'm on the ULD still.. so I'm going to try and press for my replacement credit if/when this phone fails again and try the BB trick again.
My question to XDA users is what VZW phone are you looking at after your G4? I really need something that can have the hotspot unlocked. the Galaxy S7 looks decent, but looks like boot loader unlock is not coming, and worse camera.
here is a highlight of my conversation with LG Supervisor that has made others laughed:
Me: Based on LG's faulty manufacturing and after this phonecall process bad customer retention, can you give me one reason to ever buy an LG product again... just one?
Supervisor: umm come on *my name* you know why
Me: no please, tell me, you have a poorly constructed phone, and you're arguing with customers over the fix, and now you're telling me there is nothing you can do to make me the customer happy so I purchase another LG product..
Supervisor: I understand, but, but, LG is... well because they're good.
Me: ahh yes good. what is good exactly the products or the customer service?
**dead air for about a min.**

El Genio Malvado said:
Woke up last saturday morning, grabbed my phone on the way outside and it was off, dead battery, went and grabbed the spare from the charger popped it in, and hello infinite boot loop death.
Ive tried the freezer trick, but waiting 15 mins for 63 apps to optimize each time is death.
I called LG spent 2 1/2 hours on hold, disconnected 3 times, and when I finally got a supervisor to speak with I had to convince them the boot loop was a known issue and they would call me back on Monday. Never got a call.
Following day went into Best Buy where I purchased the phone and it was 11 months old, 505, they advised me to go to Verizon, Walked over to the verizon store a few doors down and had a great customer service experience, they took everything I said for face value, offered to send me a 'Like New' replacement, got that phone 2 days later, started up, and its a bigger piece of **** than my boot loop brick. Wont stay on for more than 5 mins, sometimes it boot loops, other times it doesn't, locks up harder and faster than a frogs bhole ..
once again went back to Verizon, again amazing customer service, now on my 3rd LG G4 in the mail, 2nd Like New..
I am pretty done with G4 completely.. and I can't just upgrade because I'm on the ULD still.. so I'm going to try and press for my replacement credit if/when this phone fails again and try the BB trick again.
My question to XDA users is what VZW phone are you looking at after your G4? I really need something that can have the hotspot unlocked. the Galaxy S7 looks decent, but looks like boot loader unlock is not coming, and worse camera.
here is a highlight of my conversation with LG Supervisor that has made others laughed:
Me: Based on LG's faulty manufacturing and after this phonecall process bad customer retention, can you give me one reason to ever buy an LG product again... just one?
Supervisor: umm come on *my name* you know why
Me: no please, tell me, you have a poorly constructed phone, and you're arguing with customers over the fix, and now you're telling me there is nothing you can do to make me the customer happy so I purchase another LG product..
Supervisor: I understand, but, but, LG is... well because they're good.
Me: ahh yes good. what is good exactly the products or the customer service?
**dead air for about a min.**
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Click to collapse
Oven fix to get all the data off worked on mine got the data off
http://forum.xda-developers.com/g4/help/diy-h815-usa-variant-hardware-boot-loop-t3311623
LG Replacement - All you do is call LG tell them what happened you'll file for a replacement claim ship the phone in they'll send you a new device easy that's what I did

astonmartin214 said:
Oven fix to get all the data off worked on mine got the data off
http://forum.xda-developers.com/g4/help/diy-h815-usa-variant-hardware-boot-loop-t3311623
LG Replacement - All you do is call LG tell them what happened you'll file for a replacement claim ship the phone in they'll send you a new device easy that's what I did
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Click to collapse
Im worried that by doing that I'll void the warranty and LG won't accept my claim, i've also rooted the phone, and i've read negative feedback on that also.

El Genio Malvado said:
Im worried that by doing that I'll void the warranty and LG won't accept my claim, i've also rooted the phone, and i've read negative feedback on that also.
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Click to collapse
NO they won't find out I did it all & got my phone replaced they want to keep there customers so they'll do whatever it takes to make the customer happy

My phone is a 510 build. Still rev 1.0. If I were looking right now for a phone on Verizon, it would be the S7 or the wait for the next Note or Nexus. If you were to not use Verizon anymore, which is what I'm contemplating, I would either get a Nexus or OnePlus Three.
Sent from my VS986 using Tapatalk

access adb with usb debugging on but dev options off
sooooooo.... i have a verizon g4 thats on 13b and rooted . i tried to edit a line in the build.prop file to allow ANY 2 apps to open at the same time and i did something wrong and now im stuck in a boot loop. i would normally just use lg root tool to reflash the rooted system img to my phone to fix this, thats not too big a deal. my real problem is i have usb debugging on but dev options off so usb debugging prob is too so adb will b useless if thats the case sooo i guess i just need to know if usb debug will work if dev options are off?

Neco Carmello said:
sooooooo.... i have a verizon g4 thats on 13b and rooted . i tried to edit a line in the build.prop file to allow ANY 2 apps to open at the same time and i did something wrong and now im stuck in a boot loop. i would normally just use lg root tool to reflash the rooted system img to my phone to fix this, thats not too big a deal. my real problem is i have usb debugging on but dev options off so usb debugging prob is too so adb will b useless if thats the case sooo i guess i just need to know if usb debug will work if dev options are off?
Click to expand...
Click to collapse
Are you wanting to get data off of it or just reset it? Or are you wanting to just try to fix the build.prop? How far does your boot get (LG screen or Verizon)? Will it boot into download mode?
EDIT: I just turned on debug and turned off dev mode, and it automatically turns off debug. I couldn't connect to my phone via adb. The way that I escape from bootloops, at least when it makes it to the Verizon screen, is using LGUP in the same way the downgrade is done. I can't post links, but it is at this post: forum.xda-developers.com/verizon-g4/general/downgrade-mm-to-ll-lgup-t3322616

Need help!! LG G4(H815) not starting

Hi all,
so here is my problem.
Day before yesterday i had a perfectly working LG g4 H815 model with s/n 511 running on firmware v20h, when i decided to root it and install some mods.
so i flashed TWRP, installed xposed and xtrememusic mod. the phone booted normally after installing these. i didn't install any modules under xposed. the phone worked perfectly for two days. however today morning it hanged while taking photo with the camera app. when restarting it got stuck at LG logo for long time. My brother(who doesn't have any technical knowledge) pulled out the battery and restarted. Again it got stuck at LG logo. thinking somthing wrong he again repeated this only to find that it didn't power on at all this time. No LG logo no notofication light nothing.
Tried charging it(although battery was aroung 60-70%), pressing power button removing the battery. still nothing. the phone is not at all powering up.
However when i connect it with USB cable with laptop, laptop makes sound of getting usb connection detected. i took it to a service centre.
the technical guy there told that IC may have been faulty. he told me that motherboard needs to be replaced. however unofficially he may try heating the IC to get it booting.
What should i do now? Is the IC really fried. had the rooting and installing mod caused it?
Please help.
PS- the phone is imported and cannot be sent back for warranty purpose.

I think you are experiencing the dreaded LG G4 bootloop. I don't think rooting or modding caused a software problem. It "may" have caused a hardware problem simply because it generated enough heat to loosen the IC that little bit that initiates the problems you are describing. I rooted and installed the stock image in Nov 2015. Two weeks ago the phone froze - restarted and then could not be booted. LG sent me a Fedex label and I sent it off. Ten days later I received the same phone back. I assume they replaced the mainboard.
You should contact LG directly. I saw a class action suit that was called off because it appeared that LG will fix this particular problem (failed mainboard) out of warranty. Anyone please correct me on this if I'm wrong.

dsteinschneider said:
I think you are experiencing the dreaded LG G4 bootloop. I don't think rooting or modding caused a software problem. It "may" have caused a hardware problem simply because it generated enough heat to loosen the IC that little bit that initiates the problems you are describing. I rooted and installed the stock image in Nov 2015. Two weeks ago the phone froze - restarted and then could not be booted. LG sent me a Fedex label and I sent it off. Ten days later I received the same phone back. I assume they replaced the mainboard.
You should contact LG directly. I saw a class action suit that was called off because it appeared that LG will fix this particular problem (failed mainboard) out of warranty. Anyone please correct me on this if I'm wrong.
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Click to collapse
Hi thanks for the help.
But isn't the dreaded bootloop is that where the phone is stuck at the LG logo. Mine isn't booting at all. And the bootloop problem is due to big cores or such and not due to ic?

Mine wouldn't start at all - it bootlooped once for about a split second - then it was dead

Same is the problem with me. Bootlooped twice and then its completely dead. I have tried contacting Lg UK. Lets see what they say.

Ok so i got a reply from LG and they suggested me some steps to take (which are obviously not useful as it is completely dead). however they have also told me that they are willing to help me and asked me about details of purchase etc and "whether it was rooted".
so what should i reply rooted or not? will they detect it as it is dead.

dbzgoku said:
Ok so i got a reply from LG and they suggested me some steps to take (which are obviously not useful as it is completely dead). however they have also told me that they are willing to help me and asked me about details of purchase etc and "whether it was rooted".
so what should i reply rooted or not? will they detect it as it is dead.
Click to expand...
Click to collapse
Sorry to be late on reply. I advise to not answer question whether phone was rooted. Here is my reasoning:
1. This problem is widely occuring - only a tiny percentage of people root their phones therefore question is irrelevant.
2. The problem is known to be that an IC becomes loose most likely due to heat - a better question would be - do you place the phone on a hot dashboard with GPS running while you are charging?

dsteinschneider said:
Sorry to be late on reply. I advise to not answer question whether phone was rooted. Here is my reasoning:
1. This problem is widely occuring - only a tiny percentage of people root their phones therefore question is irrelevant.
2. The problem is known to be that an IC becomes loose most likely due to heat - a better question would be - do you place the phone on a hot dashboard with GPS running while you are charging?
Click to expand...
Click to collapse
thanks for the reply (although late). i have already sent the phone to LG replying as no root. Lets hope they repair it without any problems.
second i didnt do anything of anysort like placing on hot dashboard or such. one day while opening the camera app it decided to just hang and later on die on me.

I hope you didn't think I was saying you might have done something that would overheat your phone such as my second example. I was trying to come up with an example reason the IC loosens. Even if you did that the phone should survive such conditions. Let's hope the replacement motherboards somehow do better. My guess is that the soldering job is fine, the problem is probably bad design that doesn't "vent" the heat from chip.

dsteinschneider said:
I hope you didn't think I was saying you might have done something that would overheat your phone such as my second example. I was trying to come up with an example reason the IC loosens. Even if you did that the phone should survive such conditions. Let's hope the replacement motherboards somehow do better. My guess is that the soldering job is fine, the problem is probably bad design that doesn't "vent" the heat from chip.
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Click to collapse
so what do you suggest after repair should i keep it or sell it? Lg g4 is no doubt the best phone when considering the value for money. no phone even twice in price comes close in camera and screen quality especially. but the unreliability of this phone has made me to consider selling it as soon as i get it back.

I'd keep it if your new board is high serial

lukem99626 said:
I'd keep it if your new board is high serial
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Click to collapse
Well my old board was also high serial, beginning with 511

I'm going to take my chances - it's a great phone until it bootloops. I'm going to avoid scenarios best I can that could result in the phone heating up inside. That would be charging only if absolutely necessary while in my ProClip dash mount if the car is hot, using backup battery after depletion instead of charging more often etc. Thinking back I rarely put the phone into heat inducing situations - normal use results in the IC becoming loose at the 1 year mark. If mine bootloops exactly a year from now and LG fixes it again I'm an LG fan. If they blow me off no more LG.
I really regret not paying it off early and taking the $15/month deal for an S7 Edge last month

dbzgoku said:
Well my old board was also high serial, beginning with 511
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Click to collapse
I mean like 611 ect thats what i got from lg

dsteinschneider said:
I'm going to take my chances - it's a great phone until it bootloops. I'm going to avoid scenarios best I can that could result in the phone heating up inside. That would be charging only if absolutely necessary while in my ProClip dash mount if the car is hot, using backup battery after depletion instead of charging more often etc. Thinking back I rarely put the phone into heat inducing situations - normal use results in the IC becoming loose at the 1 year mark. If mine bootloops exactly a year from now and LG fixes it again I'm an LG fan. If they blow me off no more LG.
I really regret not paying it off early and taking the $15/month deal for an S7 Edge last month
Click to expand...
Click to collapse
Well lg did mention in my communication with them that this carries 2 year warranty.

lukem99626 said:
I mean like 611 ect thats what i got from lg
Click to expand...
Click to collapse
Didn't know that serials have gone so high

dbzgoku said:
Didn't know that serials have gone so high
Click to expand...
Click to collapse
I brought a g4 in the new year sale it has the serial of 611 i had a 601 few months back i returned it ran hot and laggy the 611 one is cool running and lag free so i think something changed

LG G4 is dead. Bootloop with Black screen

Hi,
My mother LG G4 just died last week. And it has a lot of important data.
What is the way to revive it. even if temporary. I just want to extract the data and take it to the store I bought it from (2 weeks until the end of warranty)
The problem is I can't make the phone to turn on. I saw some people having this issue reported that there phone just stuck in a bootloop. the problem with me is that I can't even reach that point. Black screen all the time.
I did froze the phone. and it works for less that 3 mins. didn't reach home screen.
I also tried the Big core disable method. the phone restarted before restarting command in LGUP. and still in bootloop with black screen.
Now I want to try heating the phone with hairdryer. hope it works for more than 1 hour

I encounter the same problem as you (see my post) do. Except LG UP is useless for me.
For what I've read here and there, the method with the hair dryer seems to be the better one. With this you should be able to boot him properly and save the data you want.
As far as I'm concerned I will try to get the phone back to my retailer even if the phone has an unlocked bootloader. Indeed, as the issue is hardware and not software...maybe...

Monkeypox95 said:
I encounter the same problem as you (see my post) do. Except LG UP is useless for me.
For what I've read here and there, the method with the hair dryer seems to be the better one. With this you should be able to boot him properly and save the data you want.
As far as I'm concerned I will try to get the phone back to my retailer even if the phone has an unlocked bootloader. Indeed, as the issue is hardware and not software...maybe...
Click to expand...
Click to collapse
Mine died yesterday, serial 722 !!! i thought it was not going to happen but.... No way to get the phone back with LGUP or Flash tool. It was a great phone, but never again LG

alejodg said:
Mine died yesterday, serial 722 !!! i thought it was not going to happen but.... No way to get the phone back with LGUP or Flash tool. It was a great phone, but never again LG
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I was rigth to get it back to my retailer as they fixed the phone. So I flashed it again and for the moment works like a charm (even though I notice like a screen remanence) !!