My proximity sensor seems to be not working anymore, as soon as I call someone the phone goes black, and even pressing the power button doesnot awake it, but its still calling only way I can get the screen back is by sliding the unlock key and once I do that then even blocking the proximity sensor doesnot make the screen blank, and whenever I get a call the screen in completely black. only way I know who is calling by sliding that unlock key again.
I have already flashed the firmware and emmc no help so far.