Hi!
I just figure out how to reset device status to Official (which is teoretically from factory original).
I'M NOT RESPONDING FOR BRICKED DEVICE. USE THIS METHON ON YOUR OWN RISK.1. Go to TWRP and connect phone to PC.
2. Open CMD/terminal and: adb shell
3. umount /sdcard
4. mount /dev/block/platform/msm_sdcc.1/by-name/persist /sdcard
5. cp /sdcard/rct.cfg /external_sd/rct.cfg
6. Copy file from MTP/external_sd to any place on PC
7. Edit file with text editor and change required lines:
change Rooted to Not rooted
delete info of files (su, sh, etc.)
delete time of root files detection
8. Save file
9. Copy rct.cfg to external_sd on MTP device
10. cp /external_sd/rct.cfg /sdcard/rct.cfg
11. Now you can unplag phone.
12. Format system, data, cache from TWRP menu (I do that, don't trying without full wipe)
13. Go to Reboot and hit shutdown
14. Confirm to shutdown without installed system
15. Skip installing root
16. Flash factory kdz with LG Flash Tool 2014.
After booting you will se status of RCT saying Official.
Thanks to @
AriHell for inspiration from this thread:
http://forum.xda-developers.com/lg-g...-tool-t2853627