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LG G4 H811 unknown model issue in LGUP

Hello everyone, I have an lg g4 h811 that constantly says please select a known model in LGUP. I want to return to stock firmware from AEX pie rom, and now I am stock in a boot loop. It gets into download mode though, I have tried all methods I know like using flash tool 2014, lgup, updated all the drivers, even changed the com port to 41 ( in case of flash tool ) still no luck. please I need help ASAP.

Did you find a solution for this? I am experiencing the same thing.

Hello .. I have a LG G4 811 t mobile 32GB phone, what is the appropriate flash?

Cross flashing lg v40 ATT to Korea ver or etc

Heloo
Got my LM-V405 ATT unlocked version,
So i want to cross flashing to other version is it possible?
Cauze i wanted for android upgrade... It stuck on oreo, and im using this devices in indonesia,
Thankyou verymuch

hi for korea maybe not possible, but it is possible flash to v405qa usa unlocked or european v405ebw with crossflash

Fredo2 said:
hi for korea maybe not possible, but it is possible flash to v405qa usa unlocked or european v405ebw with crossflash
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hello thank for answer , can you give me tutorial to do cross flashing?

ok first download and instal LGUP_Dev_Frame_Ver_1_15_0_6, after instal usb driver LGMobileDriver_WHQL_Ver_4.2.0
in disc C\program filles find lg electronics\LGUP\model here make a new folder with the name (common) and in this folder common copy dll file- https://www.mylgphones.com/lgup-dll-for-lg-v40-thinq-version1-9-39-7.html this dll(LGUP_DLL_for_V40.zip)
now put the phone in download mode with usb to the pc
open powershell from the LGUP folder and type cmd enter
now indicate the address to the kdz file folder on your PC, in my case it was (lgup_cmd.exe com3 "C:\Program Files\LG Electronics\LGUP\model\common\LGUP_Common.dll" "D:\Zona Downloads\lg v40\V405EBW20d_00_OPEN_EU_DS_OP_1106.kdz)
if you have correctly indicated the address to the kdz file, firmware update will start
wait up to 100%

my phone

I believe I tried this days ago. However, after days of trying, I reread this, and it is clear to me that there are two problems with these instructions: 1. Firstly so many other threads say use only 1.16 and above for this phone. 2. you don't offer a patched link. The standard dev requires special passwords and doesn't offer a way to register.
I haven't found a dev version above 1.14 that was patched. Someone offered a patched 1.15 that supposed to help. But non of the dlls work, which I suspect is because no lgup can work with lg v405ua, below a patched 1.16 dev. I don't think I have found that unicorn yet.

Lg v405ua update

Hi.
I have LG v40 unlocked from sprint, model lm-v405UA. Firmware from may 2019. In LG web site there is an update from December.
When i connect it to lg bridge to update firmware it doesnt recognized the phone. Of course i installed lg usb driver.
Second question is, which kdz file for lg v40 can i flash instad the original firmware?

Need AT&T Pie KDZ

Hello
I cross flashed US Unlocked kdz on my AT&T LG V40. I want to go back to AT&T rom. Can anyone share the AT&T kdz please?

psbhadola said:
Hello
I cross flashed US Unlocked kdz on my AT&T LG V40. I want to go back to AT&T rom. Can anyone share the AT&T kdz please?
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Unfortunately, it doesn't exist. No one has one. There is another Thread about partition backups, and qfil was used to back up one of the AT&T kdz. But to restore is more complicated than just using LG up and a kdz.

Thanks for the reply. I think US unlocked might take it’s sweet time to get Android 10.
Anyway do you know if crossflashing stops OTAs. I’m pretty sure US unlocked has January security update but I’m stuck on November. When I try to search it says no updates available

LMV405UA moved to Europe - no Updates / Android 10

Hello guys,
sorry for my imperfect English...
I bought my brandnew LG V40 (AT&T - LMV405UA) as "unlocked / GLOBAL Version" in NY in May 2020.
I moved back to germany again and didn't get any software support. LG won't help me. I should move to US again to get updates OTA (!!!).
I tried LGUP, LG flashtool but the V405UA30c_00_VZW_US_OP_0814 .kdz file doesn't work with some dll on the phone. I don't really want to root the phone because I would lose my warranty.
Is there a *.kdz file available to get my phone updated?
If not, what are your suggestions?
Big thanks in advance! ✌

SkinnyNorris123 said:
Hello guys,
sorry for my imperfect English...
I bought my brandnew LG V40 (AT&T - LMV405UA) as "unlocked / GLOBAL Version" in NY in May 2020.
I moved back to germany again and didn't get any software support. LG won't help me. I should move to US again to get updates OTA (!!!).
I tried LGUP, LG flashtool but the V405UA30c_00_VZW_US_OP_0814 .kdz file doesn't work with some dll on the phone. I don't really want to root the phone because I would lose my warranty.
Is there a *.kdz file available to get my phone updated?
If not, what are your suggestions?
Big thanks in advance! ✌
Click to expand...
Click to collapse
Well, your at&t device won't update if you're not on an at&t network, which in Germany, you're not going to be lol.
at&t does not make it's kdz available, to anyone, anywhere. But there are some 'back-ups' people have done that you could, using other methods, flash to the device. You'd have to use something like qfil, and be sure not to flash over the critical partitions that hold your imei and s/n.
vzw does make their kdz avail, as u know, but to crossflash to vzw you'd need the correct version of lgup and it's dll. That's not too hard to find. But does vzw rom have the bands you need in Germany?
I think you'd be better off with a version of EBW rom which has German variants, and also I think is on 10.
As far as warranty goes... honestly, u have an at&t device, in Germany, forget it. I highly doubt you'd ever receive warranty help from an mfg in US. I'd bet that would be their first excuse, if yer not in the US, they can't help you.
cheers

Thanks AsitLies!
No good news for me - but you're right...