Touchscreen dead zone down middle of screen (see picture)
Pictured: the white areas are unresponsive to touch on my iPad Air 2
Background: I had my iPad’s cracked screen repaired from a third party. When I first got it back it worked fine, but now the iPad has developed dead lines down the middle of the screen as shown in the picture. It also starts to have ghost touches after I use it for too long.
Can this be a loose ribbon or something that I can fix myself with relative ease?