Sounds like something is pressing up against the screen, or the bezel is being pressed on to make it think the screen is being pressed....
Being that it's a 4100, remove the front screen and then put it back.... if it was difficult to do then there is your answer... it also might re-seat the connections....
I have a similar issue on my 8000NEX. It's hit or miss, but if I touch the Vol + or - button, mostly the + button, the volume keeps going up to the max of 40. I have to randomly press in the bottom area around the volume buttons to try to get it to stop. Also happens with my steering wheel controls at times. HELP!!!
Weird volume and radio issue with new 4100NEX
in NEX Series
Posted
I have a similar issue on my 8000NEX. It's hit or miss, but if I touch the Vol + or - button, mostly the + button, the volume keeps going up to the max of 40. I have to randomly press in the bottom area around the volume buttons to try to get it to stop. Also happens with my steering wheel controls at times. HELP!!!