Touch not working properly after Official Firmware upgrade
There is no specific forum related to this device so I am posting it over here.
I bought LG VU II (F200L) in perfectly working condition, it almost new. After installing LG PC suite and connecting it said new firmware update is available so I proceeded which was done successfully but since then touch screen is not working properly.
Usually it responds ok but main issue is back button is not working anymore, and sometimes when I press power button to unlock screen it responds very weird and not so responsive as well as sometimes doesnt responds or opens apps that I havent even clicked.
I tried to restore, emergency restore, LG Flash tools and used correct KDZ files to flash roms successfully but nothing seems to resolve this issue.
I made some research and the only thing I could find related was Mirror screen which I am not even sure if its the same thing.
Any help will be highly appreciated.