Originally Posted by nikekolok
Hi guys. I have 4x HD with rooted 4.3 vanir custom rom.
I want to reinstall my phone to the original rom. (4.1.2 "Jelly Bean" )
Does it possible?
Thank you for the aswer.
(sorry for about my English)
Turn off your phone,
Press and hold Volume down button and connect the phone to the PC while still holding Volume down button
Once the phone connected, you should see a S/W screen mode, if not re-installthe necessary drivers
Now re-insert the battery.
Go to device manager and select “disable LGE Modem”.
Run the KDZ_FW_UPD.exe and Windows Enabler.exe as an Administrator.
Windows Enabler.exe should appear in taskbar somewhere near clock, click once till you can see ‘On’
In KDZ_FW_UPD.exe select 3GQTC as type and DIAG as PhoneMode
Browse and select your *.kdz file and press ‘Launch software update’
Do not click program window even if is ‘Not responding’! Wait till flashing ends
Phone will reboot and you can remove USB cable