Hi, Wanted to get your opinions. There is some light shining through the screen of this 5s and wonder if it is a warranty issue or not. There is no perceptible damage on the edge, glass or back of the phone so this seems all internal. I have heard of issues with screens off the line, but my sister never really noticed. I think it is only perceptible when the screen is white, but when black you can't see anything. Any thoughts is super appreciated. Phone is still under warranty so I could swap it. Thank you!