I crashed my Note2 screen before n got the screen changed, possibly it is a 3rd party n not original Samsung glass panel. But everything worked fine for about 6 months until this dark blank screen l surface on the entire screen tt follows after each call end. I have to wait for abt 15 to 20secs for the screen to normalize after each call end.
If I press the Exit button at the bottom, nothing happens ie the screen remains dark blank. Same result if I press the power button unless hold down the power button for a couple secs, then it will prompt me with menu to Power Off, Data Netwk mode, Flight mode, Restart.
Is this an Android or software or the replaced panel or hardware issue?
Can Samsung detect the screen panel has been changed if I send in for servicing?