Cross-Flash Oreo or Pie firmwares for all LG G7, G7+ dual sim Thinq except t-mobile

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Jimster480

Member
Oct 18, 2018
9
0
Does this guide still work? I have a LG G7 Sprint version with Sprint firmware (unlocked) but it can't use LTE on other carriers (becaues sprint firmware). So can I use this guide to flash the unlocked ROM and use it on Tmobile VOLTE?
 

Gr1mcore

Member
Jul 17, 2019
6
1
I have an LG G710EMW from Brazil which came with Android 8 originally, I flashed the Android 10 ROM from Australia (the same device is used there), everything worked fine except the camera app, the videos recorded only play audio from the right side, can anyone help?
 
Dec 13, 2020
17
0
And I can't access 4g network too when I cross flashed to g710em too... Only 3g works please any help.. I want a stable stock rom to install a custom rom...
 

eric777my

New member
Oct 19, 2019
4
0
Can any of the experts confirm if a Single Sim type of G7 (64 GB Rom) can be cross flashed with G7 Plus (128 GB Rom) software to open up the 2nd Sim Slot to become a Dual Sim phone?

It is no longer possible with G7 on Andriod 10 using LGUP to cross flash so have unlock bootloader if cross flashing can restore the Dual Sim functionality of Single Sim G7.

Thank You All...
 
Last edited:

athan17

New member
Jul 7, 2023
3
0
LG G7 ThinQ
Need Help I cant crossflash lg,g8 verizon ..can you tell,me,what to do
 

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a_petrov303

Senior Member
Feb 15, 2010
410
11
Chisinau
Microsoft Surface Duo
Does not work with t-mobile! Sorry.
Hello!
Good news for everybody! The new LG-UP v 1.15.06 not only allows us to install Pie, but also Cross Flash between devices.
Example: I live in Europe - Romania and I wanted my language for my LG G7+ EAW. Unfortunatetly this model is for Hong Kong and does not support most of european languages. No problem with this new LGUP. I just crossflashed my LG G7+ 6Gb Ram, dual sim to LMG710 EM. Maybe I can unlock bootloader with a little help.
I also flashed 2 diffrent LG G710N korean firmwares. All working fine.
The only problem was with the Korean open firmware, not supporting sim network, but I reverted back and it worked.

Easy commands for this new LGUP v1.15.06
If using powershell from win10:

1. Install USB drivers and put G7 in download mode
2 Open powershell from C:\Program Files (x86)\LG Electronics\LGUP (shift + right mouse) and type cmd and hit enter.
3. Type this command: lgup_cmd.exe comX "C:\Program Files (x86)\LG Electronics\LGUP\model\common\LGUP_Common.dll" "(path to your kdz firmware)"
Example: (if your phone is under com5 and your kdz is located in D:\ and has this name G710NO20c.kdz)
lgup_cmd.exe com5 "C:\Program Files (x86)\LG Electronics\LGUP\model\common\LGUP_Common.dll" "D:\G710NO20c.kdz"

Links:
LGUP new version - https://drive.google.com/file/d/1dJZxrj7nteDDUcQpiJLpX9Mjumm5mtKp/view
LGUP common.dll https://drive.google.com/file/d/1V8IF2vJed3bQBsBCHLNBJdnW4gRj2uo0/view
Firmwares: https://lg-firmwares.com/

ENJOY!!!
Credits to LameMonster82 for his guide here: https://xdaforums.com/lg-g7-thinq/development/rom-how-to-install-pie-stock-treble-aosp-t3914079
merci mult)) but the links are dead. I really need to crossflash my V40 and neither LGUP1.14 nor 1.16 worked for me.
Can you please share the 1.15 version to a Romanian brother please?
 

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