So I plugged my iPhone into a 2 year old Alpine deck and my iPhone crashed. Holding it up to the light though, I could see a bunch of moving rectangles all across the screen. When I try to turn it on, the Apple logo will be on for a long time then the screen will flicker and it will go back to the Apple loading screen. It turned on TWICE after this happened, and an error message popped up saying something along the lines of "Iphone Repair Needed. Contact apple.com/support." Does AT&T handle hardware repairs? Or do I have to go to an Apple store?