dropped iphone 4s
i dropped my 2 weeks old iphone 4s on the ground..but it doesnt malfunctioned the day i dropped it...after a few days my iphone 4s freezes when i played games or when i play music...the screen freezes but the sound still playing...i restart my iphone everytime the screen freezes..then the other day..my iphone freezes again but i cannot open it, it turns to black screen with white lines and colored lines...i tried restoring or updating my iphone but the white and green lines still there...is it a hardware problem?? pls help...what should i do??
iPhone 4S, iOS 5.0.1