New phone bought 9 days ago, with case. Has no marks no scratches is perfect but this morning when I woke up screen was black then noticed small strip of light at bottom of screen and a crack on the inside but outside is perfect. What causes this? Best buy says they have never seen this, won't exchange.
Hmm.. I think it's the digitizer broken. Are you sure the phone wasn't accidentally dropped before or pressure applied on it (like accidentally sitting on the phone)?