Currently Being ModeratedDec 3, 2012 8:44 PM (in response to alekua30)
Reset, hold both Home and Power buttons until the iPhone begins to restart, usually takes about 10 seconds of holding both buttons. If still problem, Restore iPhone, connect iPhone to computer with iTunes 10.7 or 11 open, hold both Home and Power buttons for about 20 seconds until iTunes recognizes iPhone in Recovery Mode. Click Restore button of iTunes. If still problem perform DFU Mode Restore of iPhone.