Rainbow Effect at top
I replaced a cracked screen, put it all back together,
but when I press on the top of the ipod, on the screen, near the frame, I get a rainbow effect on the screen.
Took it back apart several times, can't see anything under the metal shield (midplane?) or on top of it. All screws back in original locations. Adhesive was completely cleaned off, new adhesive placed (all the way around).
Seems like when I press on the top near the frame, it goes down further than the frame a very small amount (I can feel the ridge of the black plastic).
What could be causing this?