Develop Bugs

Safest way back to stock

Hi guys, I have european e975 and would like to go safely back to stock, but i need help.
I tried to flash the new V20A stock KDZ via vietnamese easy method http://forum.xda-developers.com/showthread.php?t=2797190, but the tool just can't connect to the device, i tried everything, even fidling with COM ports.
Also I made backup with TWRP of V10H, but now the phone has CWM and CM11 and i don't know if i should use the backup.
tl;dr: Safest way/method to flash back to stock?
ThankYou )

Try to flash TWRP again, then restore backup

Flashing the twrp backup is fine don't worry.

Trying to downgrade from rooted ZVE to ZVC

I have an LS980 with stock ZVE that's rooted with TWRP recovery installed.
Knock on isn't working, so I'm trying to find a way to flash a different ROM (currently, SuperG2).
When I flash SuperG2, I get stuck at the LG screen, and the LED cycles through different colors. The ROM never boots, but I can go back to recovery to restore my ZVE backup.
So I guess my question is how can I move from my stock ZVE ROM to, say, a ZVC or ZVD? Do I need to do anything besides flashing the zip and wiping the system, data, and cache through recovery?
Thanks!

Tot is the only way
Sent from my Nexus 7 using Tapatalk

I also lost knock on with ZVE and got it back by flashing dorimanx kernel, you might try it I've been happy with it.
When/ if Sprint does a Lollipop update I plan to roll back to stock using this guide: http://forum.xda-developers.com/showthread.php?t=2432476.
Cheers

[Q] LG G3 (D852) EFS and Modem Backup

Hello everyone,
Last week I flashed CM12 onto my G3, I have TWRP installed as my recovery.
I may have to send my G3 in for repair and if so plan to use the LG Flash tools to do so. I am worried that by doing so I will lose my EFS and modem. I flashed just the CM12 rom and Gapps, so would the stock modem and EFS still be the same as before I flashed CM12? I can currently backup both using TWRP, but will this modem and EFS be correct for my application of restoring back to stock?
Thanks to anyone who helps!

_N3XU5_ said:
Hello everyone,
Last week I flashed CM12 onto my G3, I have TWRP installed as my recovery.
I may have to send my G3 in for repair and if so plan to use the LG Flash tools to do so. I am worried that by doing so I will lose my EFS and modem. I flashed just the CM12 rom and Gapps, so would the stock modem and EFS still be the same as before I flashed CM12? I can currently backup both using TWRP, but will this modem and EFS be correct for my application of restoring back to stock?
Thanks to anyone who helps!
Click to expand...
Click to collapse
hey
i just start using this phone-but stock rom may contain whole files you need.modem,...
if have aware of anything see this post
and also find your region stock rom for time you failed everything and need to back to fist place

_N3XU5_ said:
Hello everyone,
Last week I flashed CM12 onto my G3, I have TWRP installed as my recovery.
I may have to send my G3 in for repair and if so plan to use the LG Flash tools to do so. I am worried that by doing so I will lose my EFS and modem. I flashed just the CM12 rom and Gapps, so would the stock modem and EFS still be the same as before I flashed CM12? I can currently backup both using TWRP, but will this modem and EFS be correct for my application of restoring back to stock?
Thanks to anyone who helps!
Click to expand...
Click to collapse
Hi there.
Your EFS never changes it does not matter which ROM you flash. Before you bring the phone back to stock with LG FlashTool please backup your EFS with TWRP!!!
Secondly, if you haven't flashed any other modem (I assume you were already on Lollipop before flashing CM12) then the modem is the same as stock. Please backup that also with TWRP!!!
Save both the EFS and modem on EXTERNAL MicroSD card or better transfer to a computer.
Lastly is that you must choose the right KDZ or TOT+DLL file for you phone!!!!!! When you bring back to stock anyway, both the EFS and the necessary modem will be included when flashing with LG FlashTool.
Have a look here and search more help http://forum.xda-developers.com/showthread.php?t=2785089
Hope this helps you and if I did please press the thanks button.

LG G3 T-Mobile Stock Recovery

So I rooted my G3 and I flashed twrp with flashify so I could flash xposed ( did not flash a custom ROM, just xposed) I got an OTA update so I tried flashing my stock recovery using flashify but i just got an error and had to pull the battery to reboot. I know some of you will think its pointless to root and flash a custom recovery just to revert back to stock but can anybody help me get back my stock recovery so I can get the OTA update.

You need the flash whole stock ROM via FlashTool first.

forumber2 said:
You need the flash whole stock ROM via FlashTool first.
Click to expand...
Click to collapse
Any guide?

How to restore ZVG back to stock ?

Im on ZVG and i messed up my recovery someway or another and i need to revert back to stock or factory reset it but i have no idea how to do this, this is my first LG phone and i don't want to completely brick it. The phone works but the recovery doesn't and i want to install TWRP and flash a rom.

There is thread in the LG G2 General forum that has all the info you need. You need to get a tot file and flash it using LG recovery tool. It works. I have done it successfully a few times
Sent from my LG-LS980 using Tapatalk