LG KK540 Unbrick Service Package:
LG K540 Stock Firmware: LGK540AT-V11b, LG UP DLL for K540 and LG UP.
This recovery file works on LG K540 with V11b firmware only.
The unbrick servcie package includes:
LG UP DLL for LG K540
LG UP Store Ver. 1.14: LGUP_Store_Frame_Ver_1_14_3.msi
LG USB drivers:
Click purchase to get zip password and full download URL with keys.
How to Flash LG Stock firmware with LG UP
Before your start, You need to install LG USB drivers, and then intall the LG UP DLL for LG K540.
and then install the LG UP Store software.
Once you have firmware downloaded, Put your phone into download mode, and run the LG UP,
LG UP should find your phone, and then choose upgrade option and select the bin/firmware you just download
click start to flash firmware onto your Phone.