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[Q] Bricked verizon lg g2 by install software update, don't know what to do

Hi guys, I got my LG G2 a few months ago and it was my first android phone. Since I always jailbroke my apple devices I decided to root my lg g2. Everything worked fine until last week when I was prompted to install a software update. I thought this might mess up the phone since it was rooted so I postponed it until later in the day to give me time to research, but I forgot to postpone the update again and it went through at the scheduled time. Now when I turn my phone on, the lg logo is displayed, and then I get a boot certification verify error. I don't really know what that means but I can't do anything, no recovery, no download mode. I started to follow this tutorial but am stuck at what files to download. I do not know if I have the 10b, 11a, or 12b variant, and I can't find a way to check it without turning the phone on, which I can't do. I'm really lost at what to do at this point, I can't follow the only guide that might fix my phone. Is there another way to solve this issue or find which variant I have? Would verizon accept it back to fix or replace it since it's been rooted? I've read some people saying they unrooted their phone and then returned it to the carrier, is it possible to do that in my situation? I really need some help guys.

TBH: I would call Verizon, and tell them the phone was bricked by the update- hope they don't notice it was rooted when they warranty it. Problem is, if they do you get charged full amount for phone. I'd consider if you have insurance to just claim it on insurance.

try download lg support tool from lg website http://www.lg.com/uk/support/software-manuals
plug the device and wait for the software to recognize ur version.

I downloaded and installed it, but it won't recognize by phone. I have installed the drivers for it

ok.
try to follow this guide http://forum.xda-developers.com/showthread.php?t=2681089
and the files download from here:http://downloads.codefi.re/autoprime/LG/LG_G2/VS980/Stock_Firmware/10B_Partitions
lets try this virsion and see what happend..
download the 10B zip file and the dll file too http://downloads.codefi.re/autoprime/LG/LG_G2/VS980/Stock_Firmware

now it doesn't boot at all, not even to the lg logo. Additionally the partitions don't show up in ubuntu any more. I guess i'm completely screwed now?

OTA update when rooted D855

Hey, I have a LG D855, and I'm rooted on A6NL D855 V10G. My phone suggested to OTA update to V10I. Now I want to know if it's safe to do so. And if that's the case, what would happen to my root? I'd actually be glad to be rid of my root since I think it's lagging my device. So, what exactly would happen if I updated? Anybody with experience?

Would think although showing an ota when you download it it won't install as it will detect your root. In order to update you will have to return to unrooted state. A search will show a couple of threads instructing how to.

From what I understand, as long as you haven't made any changes within the system folder or installed a custom recovery, the OTA should install just fine. Worst case is if anything has been changed, it will tell you and it won't install. But yes, you will lose root once it is installed.

root and ota should be ok.
but be very careful if your g3 is bumped!! if you had installed bump! on your device, an ota update fails and the reboot always ended in the recovery. i tried almost erverything - no way out. i had no chance to reboot into the system!!
only flashing back to stock had fixed the problem (incl. loosing all personal data).
kd

Mendeltje1313 said:
Hey, I have a LG D855, and I'm rooted on A6NL D855 V10G. My phone suggested to OTA update to V10I. Now I want to know if it's safe to do so. And if that's the case, what would happen to my root? I'd actually be glad to be rid of my root since I think it's lagging my device. So, what exactly would happen if I updated? Anybody with experience?
Click to expand...
Click to collapse
When u are rooted, it will download the new update (ota), but it will give a error when it installs. You have to update via pc.
Sent from my LG-D855 using XDA Free mobile app

Just had this happen to me on LG G3 for AT&T
Was rooted, got prompted to install the update, I kept declining until it stopped asking.
Then my phone died, after plugging it in and restarting my phone, it instantly jumped into the update window with no other options.
It updated automatically, and it didn't stop or error because of my root. I'm on 4.2.2 now, most up-to-date version on AT&T.
To make it clear: I'm rooted with TowelRoot, NOT with Bump!

[G6 H870] Unable to update through KDZ

Hi. I have a problem. I'm on a V20C Oreo. When i am trying to update to something newer (by LG flashtool or by official tools like LG Bridge) phone freezes on LG G6 ThinQ screen, nothing helps (factory reset too). Then i must go manually to download mode and flash V20C back, and it boots OK. What is wrong?
Later than one month ago i have problem with charging, the cable was charging only on one side and it newer go to fast charge mode, then i made a factory reset and problem dissaperes for a couple of hours, after flash to V20C (i can't flash newer soft) its ok for a few weeks.
What could be the problem? Please help.

Nobody will help you, coz this G6 forum is the worst smartphone forum ive ever seen.

i hope not Is there any other LG forum where I can get help?

chappski said:
Hi. I have a problem. I'm on a V20C Oreo. When i am trying to update to something newer [...]
Click to expand...
Click to collapse
Isn't V20C the most recent stock? If you want to downgrade you will have to unlock bootloader, but I guess it's not what you have problem with. Try to use LG UP with UPPERCUT, other tools probably won't work.
matthew33 said:
Nobody will help you, coz this G6 forum is the worst smartphone forum ive ever seen.
Click to expand...
Click to collapse
You are working hard to prove it, aren't you? If you have nothing smart to say just stay quiet.

No. I just want to update the phone. LG Bridge want to update to V20F but after update phone freezes.

chappski said:
No. I just want to update the phone. LG Bridge want to update to V20F but after update phone freezes.
Click to expand...
Click to collapse
uhmm that's weird i wouldn t recommend updating right now .wait till u see what other people are experiencing

chappski said:
Hi. I have a problem. I'm on a V20C Oreo. When i am trying to update to something newer (by LG flashtool or by official tools like LG Bridge) phone freezes on LG G6 ThinQ screen, nothing helps (factory reset too). Then i must go manually to download mode and flash V20C back, and it boots OK. What is wrong?
Later than one month ago i have problem with charging, the cable was charging only on one side and it newer go to fast charge mode, then i made a factory reset and problem dissaperes for a couple of hours, after flash to V20C (i can't flash newer soft) its ok for a few weeks.
What could be the problem? Please help.
Click to expand...
Click to collapse
For my h870 lg bridge doesn't show any updates?For what region is your phone?

Phone is from Poland, not brannded.

Ota update after root

I rooted my device with Android 10 and I'm unable to update the software. It keeps saying unable to update. visit samsung centre.How do i fix this?

afaik once you rooted your device, you can't use ota to update your phone. you have to do it manually.

UniX1803 said:
afaik once you rooted your device, you can't use ota to update your phone. you have to do it manually.
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Any idea on how to manually update cause i never found any tutorial on youtube

For example using Odin.
you need the correct firmware for the phone.
For example:
https://www.sammobile.com/firmwares/

I tried it yesterday, but it did ended up in bootloop. Don't know if i did something wrong or if it is just not working.
Was it possible for you to download the OTA update? For me it worked. But i'm a bit scared to install it and end up again in bootloop :/

Stock flash and relock problem (lg up + upercut)

Hi
I had unlocked my lg g6 bootloader, and installed custom rom.
After few months with custom rom, I want to get back to the stock lg rom, with dual camera and L1 widevine.
So I tried to install the stock rom and relock bootloader:
Using LG up , downloaded .kdz file, and upercut, I get each time dll problem. The LG up version does not match with the phone version. I tried to place or replace some dll files found online in LGUP/common/LGUP_Common.dll
Nothing happens, I still have this issue.
Then, I tried with LG bridge (update - repair update).
It worked, I installed the stock rom. I still had the bootloader unlocked.
I locked the bootloader with adb and fastboot, and did factory reset.
So why I am posting this message ?
Because now, with the stock rom installed by LG bridge, I have L3 widevine and not L1. And the camera application (and all apps using the camera) does not work.
I think, I need to rewrite properly the original rom with LG up, but I don't know how to make it work properly. I used one time LG up by the past when I soft bricked my phone, and I did not get any dll issues.
Now, I am trying to do it, and nothing works. I tried 2 computers (1 windows, 1 linux+Windows VM) nothing.
kdz problem, dll problem, computer problem ? I don't know...
I really wish someone could help me
Thanks, very much.

If you are coming from Custom ROM to Stock, you need to flash Nougat first. If you dont your camera wont work.

I think that like my old LG L9 the G6 has a PROM/fuse bit which remembers if the bootloader had been unlocked once. This could explain the Widevine issue. Samsung introduced Knox years ago, which also won't ever forget unlocking and prevent further use of certain Samsung applications.

lecorbusier said:
I think that like my old LG L9 the G6 has a PROM/fuse bit which remembers if the bootloader had been unlocked once. This could explain the Widevine issue. Samsung introduced Knox years ago, which also won't ever forget unlocking and prevent further use of certain Samsung applications.
Click to expand...
Click to collapse
Thanks for this response

coco74x said:
Thanks for this response
Click to expand...
Click to collapse
Did you solve?
Cause I did almost same things as you: wanted to go back to stock after experiencing some random reboots with lots of custom roms (which worked till few months ago) and so flashed back the original Pie (H87030b_00_OPEN_EU_OP_1105.kdz) via LGUP but ended up with camera and flash not working at all.
While on custom rom everything works smooth, a part from random reboots
Right now I'm flashing H87011i_00_OPEN_EU_OP_0108.kdz (Nougat) but I'm not sure if it will solve the problem.
Thanks in advance
EDIT: camera is working on Nougat, butnow I have to deal with that damn "moisture" notification
EDIT2: after almost a full day of updates I can use my LG G6 with stock rom, stock camera and be very happy with it ;-) thanks @SkylineDiT for the tip of going back to Nougat, didn't know it.