yashsingh1/xdaforums huggingface dataset:
[G4 Android Development] DaKiller147:
Hey!

I'm also facing the frustrating Bootloop and have no warranty or response from LG like many others

I tried your files here, I flashed V10f_TWN on my H815 (was on MM) and then flashed your L file on Upgrade mode in LGUP.

It boots and gets past the LG logo all the way up to the first setup wizard and then freezes at the first screen for a few seconds, then restarts and the same happens again.

While in the first setup wizard I can't press anything (including pulling down the notification bar or locking screen), it's just frozen even though it does load the notification bar icons like cell reception and NFC.

Tried a factory reset and it didn't help.

Worth a note, locked bootloader never been rooted or custom-flashed. Stock recovery and all.

I tried flashing V20a and then flashing your H815 MM file but got an 0x2000 error saying "secure device insecure recovery". I tried the H815P MM one and it did flash, again upon booting for the first time there is a very very long process of "Android is starting..." in which it loads up all the cache for the installed apps (31 to be exact) and the second it gets to the first setup wizard it again freezes and reboots.

It feels to me like a software issue and not a hardware one since it takes about 10 minutes to load cache in first boot and it did it with no restarts, only when the android OS itself presents does it freeze and reboot.

Any suggestions?

Thanks

Edit: I tried another KDZ-flash > 4Core fix flash > Factory Reset > boot, setup wizard appeared only this time responsive, I managed to choose language and before hitting next it restarted again :(

On second boot I got as far as connecting to wifi with my password and when started to type my google name it again restarted.

Before all this when the bootloop happened about 2 weeks ago, I tried reflowing the CPU with a hair dryer and it did work for about 24h and died again, is it possible I damaged something else in the process?
[G4 Android Development] blueeyeblue:
[MENTION=4189204]DaKiller147[/MENTION] - It is a probably a unit defect. I'd suggest thinking about a new board, maybe? http://odkaz.youber.cz/2qv7lx3
[G4 Android Development] Manolon:
Recovery data -> Recovery bootloop to send the G4 to LG

Hi! My LG G4 H815 (motherboard version 508) has bootloop.... The G4 is not rooted and has Lollipop (10d).

The smartphone still has warranty, but I need to recover the data...

I watched the first video (load BIN file to the smartphone with LGUP).

I understand that this is the minimun work for recover all the data from the device.

But once all the data is recovered, can I update the G4 to the way it was before?

I mean, I want to use ILAPO Fix to solve the bootloop and get the data., and later I want to put the smartphone in the same state as before the ILAPO Fix (G4 with bootloop) for send it to LG.

In the description of the video, I can read: "It is necessary to deliver the phone to a service center, which will NOT BACKUP your important data. In this case, you may download the SW utility developed by the LG using the following link". But I don't understand this...

Can I put the G4 in bootloop after the ILAPO Fix. How? Only updating the smartphone with an official versión with LGUP?

I am very lost....

Thanks you so much!! (sorry for my bad bad english...)
[G4 Android Development] blueeyeblue:
[MENTION=8260975]Manolon[/MENTION] - You are correct. Just tick the "Refurbish" option in the LGUP and choose the stock KDZ file according to your device's model and OS version.
[G4 Android Development] rmrf:
Hi, my G4 H810 is on v10o. When I tried to use LG UP to flash ILAPO fix for H810PR, I saw a message said that "anti rollback version of device is newer than tot file". What should I do now? Please help, thanks!
[G4 Android Development] blueeyeblue:
[MENTION=4272613]rmrf[/MENTION] - You can try to flash another tot file as a last resort.
[G4 Android Development] thebadshark:
help

Hi blueeyeblue, i just flashed a 10d FW on my h815 not without any problems but the thing is that my phone constantly reboots itself after 30-40 sec of use and tbh i see no difference after flashing the fix. I did everything in this order, flash a 10g global fw that from lgup is recognized as 10h and after flashed the fix via refurbish mode on lgup and then factory reset on the phone to allow it to boot in the first place. My only guess is that there is a problem with the fw and i don't even know if i can flash a 20*(mm) fw cause i don't know if it's supported by the fix for the core.
[G4 Android Development] dragao86:
Factory reset

For the last 3 months I've been using my LG G4 with the big core disabled. But now, my smartphone is running very slow.

If i do a factory reset... All the cores will be enabled again? I'm affraid of doing a factory reset and then get bootlooped again.

Thanks
[G4 Android Development] blueeyeblue:
[MENTION=8312619]thebadshark[/MENTION] - Please try to flash the stock kdz, then use the tot file from the ILAPO FIX directory, according to your device's model.

[MENTION=8318129]dragao86[/MENTION] - Factory reset will not enable again the big CPU (dual-core).
[G4 Android Development] dragao86:
Thank you mate. What if i unlock the bootloader and flash a custom rom? The big cpu will not enable?
[G4 Android Development] moviecut:
[MENTION=3247693]blueeyeblue[/MENTION]: What partitions does the fix change?

Will it be overwritten..

..if i restore an old nandroid backup?

..if i flash a custom rom?

..if i flash a kdz-File?

Is there a tot-File, that reverts it?
[G4 Android Development] blueeyeblue:
[MENTION=8318129]dragao86[/MENTION] - Big CPU will re-enable. You will have to flash the ILAPO FIX using LGUP App & install the 4CORE FIX again.

[MENTION=2606618]moviecut[/MENTION] - The fix does change a system partition and thus any NANDROID backup restoration or flashing of any kind done to the system partition will once re-enable the dual-core CPU.
[G4 Android Development] InfX:
Less than 4 month between applying the "fix" and the moment the f-ing thing no longer runs on 4 cores (or a single core) either. Whoever reads this, remember - use the "fix" to get your data, and start looking for another device :(

Saying i am frustrated with LG, their product, and their service would be a gross understatement :(
[G4 Android Development] blueeyeblue:
[MENTION=961092]InfX[/MENTION] - LG and its way of honouring the warranty regarding the ILAPO (bootloop problem) is really awful...
[G4 Android Development] deut857:
Dears,

I have used the ILAPO (Infinite Loop Auto Power off), my LG G4 H815 worked for 3 days and then started to restart many times, now it is not working at all

I can't turn it on or even charge the battery and also my PC didn't recognize it as LG mobile it shows it as "Qualcomm HS-USB QDLoader 9008", I tried the QPST but it fails.

Please let me know if you have any solution to turn my mobile on back again

Thank you very much
[G4 Android Development] InfX:
If the idea is to pull some critical data - try removing the main board, heating it up in an oven and then freezing it, this may (or may not) let you boot it again for a very short time. Don't heat it to reflow temperatures, though, you'll just destroy it. I was able to boot for just 15m after heating it to 130C for about 5m, freezing it, then reassembling and powering up. Remember, the idea is to try and use a thermal shock to your advantage, not reflow it. Although, reflowing should work in theory, good luck doing that without very special tools and very special skills.

In case your point is to actually bring it back to life so you could use the device - the best would be simply forgetting about it.
[G4 Android Development] Swiperaja:
I have a problem with bootloop (model h815). I can get into recovery and download mode without problems.

When I try to fix bootloop (815p TOT file, with 815 file not working), I get this windows:

https://image.prntscr.com/image/Uow2vHazRi6sPT5wyWlQfA.png

Looks like everything is OK but I still have bootloop. I tried multiple times and every time is the same problem.

Any idea?
[G4 Android Development] blueeyeblue:
[MENTION=2432377]Swiperaja[/MENTION] - Please try to perform a factory reset.
[G4 Android Development] Swiperaja:
I tried it and problem still exist (stock recovery).
[G4 Android Development] blueeyeblue:
[MENTION=2432377]Swiperaja[/MENTION] - That is weird. Have you flashed the proper ILAPO tot file?
[G4 Android Development] Swiperaja:
I flashed 815P file for M android. My phone is 815 international and flash was success only with 815p file. I post screenshot a few posts ago.
[G4 Android Development] Swiperaja:
One question, how can I identify (to be sure) which exact version of motherboard I have? I bought motherboard in this condition (old one is totally dead) and I need this to be sure if is h815 int version.

I can go to download mode and recovery. Adb or some other software?

Thanks.
[G4 Android Development] blueeyeblue:
[MENTION=2432377]Swiperaja[/MENTION] - You can definitely use adb and it should be written on the MB as well.
[G4 Android Development] Slapiukas:
This is maybe stupid question, but will this fix work with the new nougat update ?
[G4 Android Development] blueeyeblue:
[MENTION=6339306]Slapiukas[/MENTION] - Unfortunately not.
[G4 Android Development] sea_man:
i follow the tutorial but when i try to "enable 4core fix" in my h811 it send me to a paypal page.... why ?
[G4 Android Development] ardian1899:
Is there any chance you'll make it working on Nougat in the future?

Thank you
[G4 Android Development] blueeyeblue:
[MENTION=4920066]ardian1899[/MENTION] - Unfortunately, not. Sorry.
[G4 Android Development] Bayhaqhi steel:
i am getting error code = 0x2000 tot is not for M OS recovery

[/B][/B]

My LG G4 H815 I tried with ILAPO but did not work and it came up error code = 0x2000 tot is not for M OS recovery

* Can help my problem please?

---------- Post added at 06:30 AM ---------- Previous post was at 05:48 AM ----------

How to downgrade from MM to Lolli hp bootlop position
[G4 Android Development] wulsic:
[MENTION=8474972]Bayhaqhi steel[/MENTION] try to use the other one which was also for the h815 with something behind it. The issue was mentioned before I believe.

And for other users regarding to the nougat update. There would be probably no issue further regarding to the bootloop issue if you would have unlocked your bootloader and afterwards edited the ramdisk of the recovery & stock rom to disable the big cores.

Verstuurd vanaf mijn LG-H815 met Tapatalk
[G4 Android Development] mohsinj1996:
is there any method for H810 model too?
[G4 Android Development] Slapiukas:
I need help. I get unknown device in lgup
[G4 Android Development] samy2015:
is there a way to fix bootloop on v10 ?
[G4 Android Development] electrowizard2000:
ILAPO fix worked!

I just got my LG G4 H812 (Canada) running Mashmallow booted with the ILAPO fix.

Phone was in infinite bootloop. Freezer trick did nothing. It's been 'dead' on a shelf for several months, but it's working now, and I recovered my photos!

The V3 fix posted here doesn't work for M - LGUP gave me the message "tot not for m os"

I found a V7 version of these files which includes Lollipop and Mashmallow: (mediafire link) on this forum

However the V7 version only includes H810, H815, H818, and I have an H812.

Attempting to flash any of these files gives the error "TOT file is invalid" - it doesn't mean the file is invalid, it means the file doesn't match your phone.

So, we 'fix' the file.

For an H812 like mine, these instructions to modify

file MOS/H815P/LGH815AT-00-V20a-GLOBAL-COM-NOV-18-2015+0_RECOVERY_6.0.tot - search for 'xVLG-H815' and change it to 'xVLG-H812' (e.g. 5->2) using HxD Hexeditor.

Make sure the file size remains 4.00 MB (4,194,304 bytes).

If you don't know what it should be, look at LGUP, under Version at the top. Mine says H81220x, so I used H812.

All steps:

Power off phone

Download V7 and extract

Run both LGUP installers there

Select the correct phone, or pick one that is similar and modify the .tot using a hex editor

Hold the up button on you phone, and plug in the USB cable (download mode)

Run LGUP program. It should detect your phone

Process > choose UPGRADE

File path > ... > choose the .tot file from above

Press Start and wait for your phone to reboot. Done!

What has happened?

This fix disabled the 'big' (fast) cores your phone uses, so now it is very slow.

Secondly, since we used the wrong .tot file, I'm pretty sure the radio now permits frequencies that are illegal to emit in Canada.

I don't have a SIM installed, and plan to discard the phone now that I have recovered my files.

If you follow these instructions (with an 'wrong' .tot file) I strongly suggest you get the phone professionally repaired after you've recovered your data. You don't want to deal with emissions regulators.
[G4 Android Development] Draegloth:
Hey guys, is there an existing tot file for h815 which enables the 4 cores on a clean unrooted LL? Or i have to root it and install custom rom to achieve that?
[G4 Android Development] DIZEN-X:
So, we 'fix' the file.

For an H812 like mine, these instructions to modify

file MOS/H815P/LGH815AT-00-V20a-GLOBAL-COM-NOV-18-2015+0_RECOVERY_6.0.tot - search for 'xVLG-H815' and change it to 'xVLG-H812' (e.g. 5->2) using HxD Hexeditor.

Make sure the file size remains 4.00 MB (4,194,304 bytes).

If you don't know what it should be, look at LGUP, under Version at the top. Mine says H81220x, so I used H812.

Can you post this file? I do not swear at the size of the file and do not want to flash.
[G4 Android Development] Brontok:
Hello everyone. quick question.. does this fix work if the phone is not turning on at all? I can not see the lg logo, nothing. I understand that the bootloader should be unlocked, but how can I unlock it if the phone is not booting. That`s why I`m asking. (I assume that I could find an answer in the thread somewhere, but please don`t make me scroll through 31 page :) - thank you.
[G4 Android Development] lRaziel1:
Same happened to me, just try plugging it to your computer through USB. It should display something like you need to charge your battery before turning on.

Then you can proceed to charge the battery, which will be at 0% charge, even if it was not before.
[G4 Android Development] blueeyeblue:
[MENTION=4854695]exilod[/MENTION] - This happened to me as well. I ended up using Windows 8.1 and it worked.
[G4 Android Development] exilod:
After the 10th flash of the 10C kdz firmware I put the phone in the freezer for 10 minutes and then turned it on. After 1 minute the phone booted and then restarted but when I connected LGUP recognized it and I could flash the .tot fix. Currently running with 4 cores and working like new. Thanks for the app :D
[G4 Android Development] blueeyeblue:
[MENTION=4854695]exilod[/MENTION] - You're welcome :) Please share the app so that anyone can fix the phone :D
[G4 Android Development] mismisimo23:
ILAPO (Infinite Loop Auto Power Off)

I can see when u get the phone to work, but what I supposed to download;app;programas ect? pls????
[G4 Android Development] altvolt74:
Do u think guys i will suffer also from this issue my model is 604..... So i could prevent this from happening
[G4 Android Development] blueeyeblue:
[MENTION=7562635]mismisimo23[/MENTION] - Everything is in the video description

[MENTION=3445386]altvolt74[/MENTION] - No MM flashable zip is available.

This is what happens to company which is not properly addressing the issue: http://www.androidauthority.com/lg-firing-executives-try-salvage-sinking-mobile-segment-701146/
[G4 Android Development] anonops:
hey guys...i didnt know much about warranty claim...but this is certainly a mainboard defects problem...but does cracked screen void my warranty?and i cannot ask for replacement since my warranty is void...is this true?
[G4 Android Development] blueeyeblue:
[MENTION=5825998]anonops[/MENTION] - Yes, probably. They will try anything to stop you. Don't let them.
[G4 Android Development] TheMadScientist:
Now i aint watched the vids yet but is this only for 815. Ive been reading first
[G4 Android Development] blueeyeblue:
[MENTION=4866525]TheMads[/MENTION]cientish420 - The fix is not only for H815.
[G4 Android Development] blueeyeblue:
[MENTION=5759239]TheMadScientist420[/MENTION] - Have you succeed fixing the phone?
[G4 Android Development] TheMadScientist:
Mine hasnt had the bootloop im just trying to be prepared. I busted my digitizer glass a couple days ago. So ive been on that one waiting for the new screen to come in from nevada. They claim its oem and gorilla glass 44 plus shippin
[G4 Android Development] nicholasknicks:
How did you manage to install custom rom ? i would appreciate a guide
[G4 Android Development] blueeyeblue:
[MENTION=5759239]TheMadScientist420[/MENTION] - Okay, I get that :)

[MENTION=5326090]nicholasknicks[/MENTION] - Everything is in the following video tutorial: https://www.youtube.com/watch?v=lbJXwPmbXFc
[G4 Android Development] myphonesbetter:
oops
[G4 Android Development] doomalikaw99:
Had any of you applied the fix and got the bootloop again? I'm really worried,I thought this is going to be a permanent fix :/
[G4 Android Development] luchoitu:
Hi blueeyeblue, first of all thank you very much for your help

i've managed to upgrade the .TOT file and phone now starts and as you said is very slow, but here is my question, how to flash the pre rooted custom rom that you share in the description of your video? just with the lgup like we did with any kdz file? The thing is that when i unzip the "7_HD_5.0_H815_by_S3V3N.zip" there is no kdz file to flash

So, in order to root my device so i can install your app what i should do?

root it with this guide: http://xdaforums.com/g4/orig-development/root-tmo-vzw-intl-variants-soon-root-lg-t3164765

or flash the pre rooted custom rom from S3V3N with lgup?

Thanks in advance.
[G4 Android Development] dolasz:
Hi!

I am on stock.

I use adb command. You need twrp.img https://drive.google.com/open?id=0B5_0muYQt9pLZ2pNUWN5bzZ0SUU (copy to adb directory) and this: https://drive.google.com/file/d/0B5_0muYQt9pLY3JPVE9IMU5OUjA/view?usp=drivesdk

(supersu.zip) copy your phone

Enabled USB debugging.

adb reboot bootloader

fastboot boot twrp.img

Will start twrp and you know install supersu.

This is work for me.

Good luck! :)
[G4 Android Development] amdev0101:
As you are on Lollipop with 2 cores disabled you simply flash which ever CM/AOSP based ROM you want.
[G4 Android Development] nicholasknicks:
Too bad my phone was stolen before i could try it out
[G4 Android Development] amdev0101:
Unlucky, but at least you got rid of this trash one way or another. Only dumbass would steal a G4 tho :laugh:
[G4 Android Development] blueeyeblue:
[MENTION=5089316]luchoitu[/MENTION] - You can use TWRP or flash only the system parititon using the send_command utility.
[G4 Android Development] luchoitu:
Yes, i did it with the send command utility and it worked!!!

Now i have my phone back with 4 cores fully functional[emoji109]

i'll keep using it until i can change to S7 Edge, LG never ever again.

Enviado desde mi LG-H815 mediante Tapatalk
[G4 Android Development] blueeyeblue:
[MENTION=5089316]luchoitu[/MENTION] - Yeah, no more LG. If they were about to replace all the affected units and gave an official statement, I would stay by them. Yet they haven't even fixed the issue in the new MB revisions. What a shame!
[G4 Android Development] gabbian0:
Got Bootloop on my H815, when it's cold he can enter Android, but get frozen after few clicks and start to bootloop. When it's too hot it doesn't even get after boot screen.

So, i downgraded to Lollipop 5.1 (i can enter dowload mode) and installed the fix, but nothing changed. It still behaves as before.

One thing i noticed, if i check cores with CPU-Z i can see all are working, not just 1 as it should, so i think the problem is that the fix is not applying correctly.

Tried many times, the file is correct, any idea?
[G4 Android Development] blueeyeblue:
[MENTION=4153270]gabbian0[/MENTION] - Try flashing the stock KDZ using LGUP or LG Flash Tool 2014 and reflash the ILAPO fix. Let us know how it went :)
[G4 Android Development] Southmad:
Once I do all this, the LG G4 has to remain on lollipop with no chance to update to Marshmallow?
[G4 Android Development] cybermessiah:
@ blueeyeblue...

Everything worked great and Im running on 4 cores with the A57s disabled.

Only thing is...now Ive copied all my data...how to I re-enable the A57s so that the phone goes into a bootloop again in oreder to get it repaired by LG?

:confused::confused::confused:
[G4 Android Development] raptorddd:
flash stock firmware KDZ LGUP.. i
[G4 Android Development] blueeyeblue:
[MENTION=2723561]cybermessiah[/MENTION] - Yes, have you succeed reenabling them?
[G4 Android Development] junixquiaoit:
How to downgrade to lollipop? Help please.. ?
[G4 Android Development] cybermessiah:
Havent tried yet...still going to run for a while on the 4 cores for a while. :):)
[G4 Android Development] doomalikaw99:
read the description in this video: https://www.youtube.com/watch?v=lbJXwPmbXFc ,below it is stated how to downgrade.

If you have an H815,I recommend europe open V10d because I have downgraded to it and everything is perfect.
[G4 Android Development] Awology:
Ive just picked up the dreaded boot loop and considering attempting this fix,

Will these files work on the H815p, ?
[G4 Android Development] blueeyeblue:
[MENTION=2723561]cybermessiah[/MENTION] - Well, let's see for how long it will work.
[MENTION=6231889]doomalikaw99[/MENTION] - I am glad it works for you.

[MENTION=4276837]Awology[/MENTION] - H818P is supported. You may try hex edit the H818p tot file to support the H815P.

Guys, please consider a donation for a further app development: http://youber.cz/lg-g4-video-donate

Thank you! :)
[G4 Android Development] junixquiaoit:
Just tried ur fix. Ive checked that 4 cores is still running instead of one. Has occasional restarts when phone starts to heat up. Is setting to 1 core only stops the restart issue?
[G4 Android Development] blueeyeblue:
[MENTION=3840499]junixquiaoit[/MENTION] - It will probably not.
[G4 Android Development] laehtis:
Ran into this today and got it working by downgrading to LP and flashing the fix, thank you.

Now I try to flash Cyanogenmod and see if it still works, I wouldn't want to use LP...
[G4 Android Development] PloomBoom:
Thanks man you are the best, saved my phone and a lot of money :D
[G4 Android Development] nipun1110:
[MENTION=3247693]blueeyeblue[/MENTION]

Really???? There is a solution for this???? Oh God...this guy is a miracle of earth.. Although I haven't tried it myself yet, but hell yah....this guy should get noble prize.

Anyway before I start, I have one question in mind. My G4 model is H815T. As u have specified the models that can support yr method, if I convert my model my flashing the international rom, will it work? Thanks again.
[G4 Android Development] neobdium:
so no other fix for VS986?
[G4 Android Development] leonxki:
After fixing, is it then possible to flash an Android 6 ROM?

(Stock?)
[G4 Android Development] doomalikaw99:
Probably no,because the fix is written in the system and flashing another system should wipe the fix.
[G4 Android Development] blueeyeblue:
[MENTION=4476616]laehtis[/MENTION] - You're welcome. [MENTION=7642435]PloomBoom[/MENTION] - I am glad I could help you :) [MENTION=4205032]nipun1110[/MENTION] - You can try it, you have nothing to lost. Probably... [MENTION=5156510]neobdium[/MENTION] - Unfortunately not. [MENTION=942043]leonxki[/MENTION] - It is not possible, since it would alter the boot (kernel) image.

Guys, please consider donating: http://youber.cz/lg-g4-video-donate

It will really help me a lot :)
[G4 Android Development] Gig11gs:
Hello I was on Marshmallow I downgraded and now the animation screen showing it means that the cores are disabled and its booting... but I can't get past the animation.

I know you said if you downgrade then you must do factory rest but all my contacts are saved on phone and I really need them any ideas?