I need flash stock OS - LG G6 Questions and Answers

Hi guys,
I would need to bring back full my LG H870, I do not have the pale idea to find the files to close the bootloader you could help me?

ilfe98 said:
Hi guys,
I would need to bring back full my LG H870, I do not have the pale idea to find the files to close the bootloader you could help me?
Click to expand...
Click to collapse
download lg bridge on pc and go error recovery. the tool will flash your phone with latest firmware and restore it to factory settings removing all modifications you have done to it.

Will this (LG Bridge) also work for H872?

zaebwolf said:
download lg bridge on pc and go error recovery. the tool will flash your phone with latest firmware and restore it to factory settings removing all modifications you have done to it.
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Click to collapse
Are you serious?I have recovery twrp and rom, won't I block my phone? will I also receive ota updates?

evaz88x said:
Will this (LG Bridge) also work for H872?
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Click to collapse
it should work for all lg phones.
ilfe98 said:
Are you serious?I have recovery twrp and rom, won't I block my phone? will I also receive ota updates?
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Click to collapse
i understand you want to restore your phone to factory state. nothing bad will happen but you will lose your root and twrp and you will be able to receive ota normaly.

Related

[Q] Can i make OTA update with root ?

Hello everyone! I am a beginner in the modification of Android, having rooted my g2 I followed a tutorial to fix the 4g on AMALBK in France. but I wondered if these changes could cause problems during updates? Can I do the update without fear via lg pc suite or OTA? I'd prefer not to have flashing process or complex changes . Please help me.
Sorry for my bad english.
LG G2 , D80220b, stock rom , root .
Up
Kaze974 said:
Hello everyone! I am a beginner in the modification of Android, having rooted my g2 I followed a tutorial to fix the 4g on AMALBK in France. but I wondered if these changes could cause problems during updates? Can I do the update without fear via lg pc suite or OTA? I'd prefer not to have flashing process or complex changes . Please help me.
Sorry for my bad english.
LG G2 , D80220b, stock rom , root .
Click to expand...
Click to collapse
If you modify the ROM you won't be able to OTA. That includes custom recovery, moving, renaming, or otherwise modifying anything in /system.
khaytsus said:
If you modify the ROM you won't be able to OTA. That includes custom recovery, moving, renaming, or otherwise modifying anything in /system.
Click to expand...
Click to collapse
Thank you for the answer! How to find a phone like the factory? Can I update with lg pc suite?
I tried updating my phone via OTA the other day, but because I had TWRP recovery, when my system installed the updated, it would boot into TWRP, and.... that was basically it, could not update, had to rollback from a backup I took moments before. Then, in a stroke of genius, I used flashify to restore the original recovery and almost bricked my device.
Big tip for anyone in this situation...
When using flashify, use recovery IMAGE not zip, if you use the zip function, it has to boot into a recovery to use it, so the image file is the preferred method, in my opinion.

LG G2 (Sprint) LS980ZVI, is this one rootable and stable ? i got security error

is this one flash able and stable, i have tried to use autorec to install recovery twrp, but i got security error and boot. also, i can even find the rom to restore it back ? any ideas ?
Rootable ? yes, you can use Kingroot it worked for me http://kingroot.fr.uptodown.com/android if this did not work try the PC version it will for sure.
is it stable ?, i cannot help on this.
kamel-kgb said:
Rootable ? yes, you can use Kingroot it worked for me http://kingroot.fr.uptodown.com/android if this did not work try the PC version it will for sure.
is it stable ?, i cannot help on this.
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i used king root, but i tried install twrp and i get a security error now, where do i find stock rom for ls980zvi ?
droid3923 said:
is this one flash able and stable, i have tried to use autorec to install recovery twrp, but i got security error and boot. also, i can even find the rom to restore it back ? any ideas ?
Click to expand...
Click to collapse
You can try this guide regarding fail to install autorec by me : http://forum.xda-developers.com/verizon-g2/general/how-to-install-twrp-lg-g2-noob-friendly-t3396596
Its working on verizon variant but you it should work for sprint as well.
LMK how it went.
iubjaved said:
You can try this guide regarding fail to install autorec by me : http://forum.xda-developers.com/verizon-g2/general/how-to-install-twrp-lg-g2-noob-friendly-t3396596
Its working on verizon variant but you it should work for sprint as well.
LMK how it went.
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i am stuck at boot screen, i get security error in a loop. but i can boot to twrp
droid3923 said:
i am stuck at boot screen, i get security error in a loop. but i can boot to twrp
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Did you have a nandroid backup? If so, you can boot to twrp and restore. Or just go back to stock firmware.
iubjaved said:
Did you have a nandroid backup? If so, you can boot to twrp and restore. Or just go back to stock firmware.
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Click to collapse
thanks for helping, i just reinstalled the stock.

factory restet / unstall twrp / relock bootloader [H870]

Hey Guys,
im going to switch my black G6 to a platimum one - so i have to relock the bootloader. I know how to do this, but first i have to get rid of twrp .
Can one of you tell me, how to performe a completet factory reset, so i can relock my bootloader?
thx in advance!
fonsi78 said:
Hey Guys,
im going to switch my black G6 to a platimum one - so i have to relock the bootloader. I know how to do this, but first i have to get rid of twrp .
Can one of you tell me, how to performe a completet factory reset, so i can relock my bootloader?
thx in advance!
Click to expand...
Click to collapse
Flash original recovery and firmware then send the lock command via ADB to lock bootloader
basicreece said:
Flash original recovery and firmware then send the lock command via ADB to lock bootloader
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Click to collapse
thank you, but how do i get the original recovery file? i didnt find it.
with my pixel and oneplus 3t i was able to flash stock rom and this reseted recovery, too.
I already flashed the actual stock rom with twrp (https://forum.xda-developers.com/lg-g6/development/rom-eu-lg-h870-10n-rom-t3637828), but this zip was made to keep twrp. Now i´m wondering how to flash a full stock rom, inkl. recovery or just flash recovery....
basicreece said:
Flash original recovery and firmware then send the lock command via ADB to lock bootloader
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Click to collapse
Realy adb relock bottloader work thats it? just easy?
On G4 not working...
If realy working very good news me thanks anyone confirm this!
Hey guys,
i still didn´t get it to work. Any Tipps for a LG Noob, how to get back to stock recovery?
plz give me a hint or throw a link in at me, If i´m missing something obvious :silly:
Can't you just install the official LG suite software on a desktop or laptop and then use that? It will probably detect the missing or "damaged" recovery and then automatically "repair".
https://www.androidfilehost.com/?fid=817550096634787189 thats the original recovery.img from 10n kdz flasht it with twrp oder flashfire app and twrp is gone
westwood24 said:
https://www.androidfilehost.com/?fid=817550096634787189 thats the original recovery.img from 10n kdz flasht it with twrp oder flashfire app and twrp is gone
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Click to collapse
Thank you..i will give it a try tonight.
westwood24 said:
https://www.androidfilehost.com/?fid=817550096634787189 thats the original recovery.img from 10n kdz flasht it with twrp oder flashfire app and twrp is gone
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Thank you. This did the Job.
Now I'm on stock rom with stock recovery, but the "fastboot oem lock" leads to a "corrupt device" that will not boot anymore. Can't the H870 (europe) be relocked, once it was unlocked via unlock.bin?
Isn't that the exact same procedure but then simply choosing "lock"?
ASW1 said:
Isn't that the exact same procedure but then simply choosing "lock"?
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i thought it was, but as a mentioned, it leads to a startscreen, that says: your device is corrupt and will not boot. after flashing the unlock bin it boots again
fonsi78 said:
i thought it was, but as a mentioned, it leads to a startscreen, that says: your device is corrupt and will not boot. after flashing the unlock bin it boots again
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Is there a "lock.bin" file that can be fetched from the LG site maybe?
From the LG developer site:
4. Once unlocked, it cannot be undone.
There is no turning back once you have unlocked the bootloader. You will not be able to revert your phone to locked status.
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Didn't you read this information before unlock the bootloader???
Montechristo said:
From the LG developer site:
Didn't you read this information before unlock the bootloader???
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i read it..:angel:
but i also read here @xda that you can relock it, if you restore to stock rom, via kdz & LG Up an then fastboot oem lock...and it worked, finally.
Thx to everyone for your help..i really, really appreciate it!
fonsi78 said:
i read it..:angel:
but i also read here @xda that you can relock it, if you restore to stock rom, via kdz & LG Up an then fastboot oem lock...and it worked, finally.
Thx to everyone for your help..i really, really appreciate it!
Click to expand...
Click to collapse
I'm interested in buying a LG G6. Can you please explain a little bit more what you did to re-lock? Where did you get the kdz image (which region) and what steps did you do? I'm completely new to LG devices.

Returning to Stock

I just got this phone and I'm debating on unlocking the bootloader and rooting it and I was just curious if in the future I need to return it to stock (especially for selling it in the future) how do you go about doing that? Do you just flash one of the stock firmwares though TWRP like I found here? http://downloads.codefi.re/autoprime/LG/LG_G6/US997/US997-USA/US99714a
Then what do you do if that is correct? Also how do you relock the bootloader? I'm sorry if these are noob questions but I have been out of the modding game for a good while.
pwnerman said:
I just got this phone and I'm debating on unlocking the bootloader and rooting it and I was just curious if in the future I need to return it to stock (especially for selling it in the future) how do you go about doing that? Do you just flash one of the stock firmwares though TWRP like I found here? http://downloads.codefi.re/autoprime/LG/LG_G6/US997/US997-USA/US99714a
Then what do you do if that is correct? Also how do you relock the bootloader? I'm sorry if these are noob questions but I have been out of the modding game for a good while.
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Click to collapse
Just flash a kdz trough LGup and the phone will be completely stock, no twrp and no root. Then you have to only lock the bootloader by typing "fastboot oem lock". Don't run this command while you have twrp and root!
Ah, and the fact you have relocked the bootloader doesn't mean that you recovered the manufacturer warranty, LG can easily verify if you used the unlock bin.
Killua96 said:
Just flash a kdz trough LGup and the phone will be completely stock, no twrp and no root. Then you have to only lock the bootloader by typing "fastboot oem lock". Don't run this command while you have twrp and root!
Ah, and the fact you have relocked the bootloader doesn't mean that you recovered the manufacturer warranty, LG can easily verify if you used the unlock bin.
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What exactly is LGup? Thanks
Sent from my XT1575 using Tapatalk
pwnerman said:
What exactly is LGup? Thanks
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Is a tool that allows firmware flashing on last lg devices.
Killua96 said:
Is a tool that allows firmware flashing on last lg devices.
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Click to collapse
I did some searching and found this. Is it the correct thing? http://rootmygalaxy.net/download-latest-lgup-tool-for-lg-devices-flash-tool/
Also just to be clear I unlock my bootloader, install TWRP and root the phone. If I ever want to go back to stock for selling the phone or whatever I just download the latest KDZ file like I linked to above and then I flash it to the phone and it will return everything back to stock? Then after that you just do the relock command and the bootloader is closed again?
I appreciate your help. I just to be super clear.
pwnerman said:
I did some searching and found this. Is it the correct thing? http://rootmygalaxy.net/download-latest-lgup-tool-for-lg-devices-flash-tool/
Also just to be clear I unlock my bootloader, install TWRP and root the phone. If I ever want to go back to stock for selling the phone or whatever I just download the latest KDZ file like I linked to above and then I flash it to the phone and it will return everything back to stock? Then after that you just do the relock command and the bootloader is closed again?
I appreciate your help. I just to be super clear.
Click to expand...
Click to collapse
Pretty much yes, search for uppercut if you have driver problems with LGup, and for firmwares this is the best site to download them: https://lg-firmwares.com/lg-h870-firmwares/
Killua96 said:
Pretty much yes, search for uppercut if you have driver problems with LGup, and for firmwares this is the best site to download them: https://lg-firmwares.com/lg-h870-firmwares/
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I have the US997 model but I found them on the site you linked to so thank you for the help
pwnerman said:
I have the US997 model but I found them on the site you linked to so thank you for the help
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Click to collapse
Ok then
LGUP
Hi, so I started flashing the kdz on my LG G6 using LGUP and it starts, but then randomly quits out. It's recognising my device and the file is definitely the correct one. Any hints as to why it's not working?
EDIT: I managed to fix it, apparently Windows Defender was seeing Uppercut as a virus and stopping it from creating the files it needed to. So make sure you turn off Windows Defender when you do this.
My experience with returning phone to stock is bad. First unlocked bootloader, installed twrp, bootloader for havoc ROM and ROM itself..
Havoc 3.1 OK, but BT calling not working, so I decide go back to stock.
LGUP used without problem, but then camera neither flash ligh doesnt work anymore.
Last firmware for H870 used from official.
Have someone same shi t experience like me?
Trying everything, but no success.
So its not easy go back to stock again..
(My phone is H870 for EU)
bobafel said:
My experience with returning phone to stock is bad. First unlocked bootloader, installed twrp, bootloader for havoc ROM and ROM itself..
Havoc 3.1 OK, but BT calling not working, so I decide go back to stock.
LGUP used without problem, but then camera neither flash ligh doesnt work anymore.
Last firmware for H870 used from official.
Have someone same shi t experience like me?
Trying everything, but no success.
So its not easy go back to stock again..
(My phone is H870 for EU)
Click to expand...
Click to collapse
It's a known problem, the A10 ROMs somehow mess with files needed for stock camera that aren't included in stock pie.
You have to flash Oreo bootloader and then 30b zip for the camera to work.
If that doesn't work flash Oreo kdz and update to Pie.
grushnickij said:
It's a known problem, the A10 ROMs somehow mess with files needed for stock camera that aren't included in stock pie.
You have to flash Oreo bootloader and then 30b zip for the camera to work.
If that doesn't work flash Oreo kdz and update to Pie.
Click to expand...
Click to collapse
Problem finally solved!
Tried many times flash Oreo bootloader and then 30b(pie), 20a (oreo). With 30b everythings work except camera. With oreo 20a phone wasnt even bootup normally.. (after reset just screen with green android and message "No commands" appear. I used LG UP 1.14 with Uppercut.
Then after many unsuccesses I put phone to state where bootloop appeared and I thought about to throw it into garbage.
ADB shell and TWRP saved me... I was again able flash roms.
At the end I found some package with LG UP 1.14 and patch (so I could use it without Uppercut...there is a new LGUP_common DLL), and with this combination flash procedure worked smoothly.
BUT! I had to load nougat stock rom first (H87011i_00_OPEN_EU_OP_0108.kdz), which fix partitions in phone somehow (but there wasnt possibility upgrade higher). Everything, camera included was working with this rom..
Then I flash oreo stock rom (H87020a_00_OPEN_EU_OP_0423.kdz), and now It booted right (no "no command" during startup). Phone worked perfectly, and I used OTA upgrade to land on 30b pie last official update.. tadaaa
Hope it will help others with same problem..

LG G6 H870 can't go back to stock rom help

Hello,
Recently i installed flumics rom on my phone and everything was fine but today i wanted to go back to stock rom and it seems i can't.
I installed the latest lg usb drivers and downloaded the latest lgup with uppercut
When i try to install the kdz file from the lgup everything is working fine and it finished 100% then the phone reboots and stucks at lg logo then after a while it reboots again and same thing stucks again.
ALso when i try to flash the kdz file again in the lgup it shows Fulmics rom 1.6
Tried to do a factory reset from lg recovery as well didn't help
Don't know how to turn off the device fully so i have some battery left.
Anyone can help me with this? do i need to send it back to lg?
If you have TWRP still just flash stock rom and bootloader
basicreece said:
If you have TWRP still just flash stock rom and bootloader
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Click to collapse
Sadly the kdz files i flashed restored the stock recovery.
Also i tried the lg bridge as well but that didn't work either.
I have left the phone doing its thing for more than 45 mins, i guess that is not normal.
Use LGUP and Uppercut to flash stock. Need drivers and put phone in download mode. It will find the port and then flash the firmware.
basicreece said:
Use LGUP and Uppercut to flash stock. Need drivers and put phone in download mode. It will find the port and then flash the firmware.
Click to expand...
Click to collapse
But that's what i already did like i mentioned above.
Make sure downloads are good, do you get an errors etc?
basicreece said:
Make sure downloads are good, do you get an errors etc?
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Click to collapse
I downloaded 3 different kdz files for h870 and none of them worked.
The strange thing is why after i flash the kdzs the lgup shows Fulmics Rom v1.6 under the version category.
Is there any way to flash recovery via download mode?
Enter bootloader and try to flash twrp again. Then flash the stock rom and all will be fine.
mprovi_15 said:
Enter bootloader and try to flash twrp again. Then flash the stock rom and all will be fine.
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That's what i am asking xD
How do to that?
John X. said:
That's what i am asking xD
How do to that?
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The same way you did it the first time?....
basicreece said:
The same way you did it the first time?....
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Click to collapse
The first time was from a working phone, anyway managed to installed it and all working great now!
How did you do it? Im in the same boat but I havent made any backup files
I've hit upon the same problem too, would love to know the workaround

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