Grey bars on bottom of screen
I have Grey bars along the bottom of the screen. They interfere with typing! i had changed the battery. Cleaned the screen connectors. Nothing works!
Update (12/15/2016)
The last line of the keyboard will not work.... that is where the Grey boxes are located! Can't type in passwords!
3 
Did you ever get this resolved? This sounds like Touch Disease, which was mostly prevalent in iPhones 6+ and 6.
Evan Noronha さんによる