Weird Screen Issue
So I've been having issues with my iPhone 6 Plus. When I had 8.3 installed my phone started to randomly panic. The screen would turn blue and the phone would just reboot. Didn't matter what I was doing either (playing a game, using an app etc...). I figured if I restore the phone to factory defaults it would fix the problem, I did the restore and haven't had any panics since. Now 8.4 came out and I did the upgrade. Since upgrading to 8.4 I occasionally get these white flashing lines at the top of the screen and the screen won't respond until the lines stop flashing. I thought it might be a 8.4 bug but I know of no one else having this issue. The problem only seems to happen after unlocking the phone when the screen is off. Sounds to me like an issue with the screen but Apple might not be willing to fix it under warranty. On July 4th my mother pushed me accidentally and the phone dropped 2 feet on a rug and the screen shattered. Now logic would say the screen was already broke and the shattered glass has nothing to do with this issue but how can you prove it. I've had other iPhones drop 5-6 ft on cement and the screen never shattered like this. I'd say the glass was defective but once again how to prove?
iPhone 6 Plus, iOS 8.4