My Samsung Galaxy S7’s screen went 1/2 gray and restore was impossible. I discovered that the problem is a bad chip solder junction in the motherboard and successfully replaced it and the phone works well now,
HOWEVER:
I messed up replacing the battery/back seal gasket. How do I figure out which way that seal is oriented, the manufacturer refused to answer my question.
Also, how do I apply that seal without it coming back off while I try to peel off the clear sheet it is mounted on. I went through two of them with no success. I want to do this right this time.