4 
5 brand new iPhone Screen jumps and has a light gray color to it.
I have a iPhone 7 that three of my techs have already looked at the screen has been changed over five times but with every screen the phone with jump and skip, it doesn't do it all of the time but at the most every two the three minutes, it dose have a little bit of a gray tent on the screen but nothing to extreme, any ideas on what the problem is.
