Currently Being ModeratedDec 16, 2012 11:31 AM (in response to Ben80996)
Since this problem persists after Restore, this is a hardware problem. This will be covered by the 1 year Warranty and AppleCare both. You only need to bring the iPhone to Apple, but other supporting information such as the box are not necessary, but taking won't hurt. Make Genius reservation or set up Service and send or take to Apple for resolution under Warranty.