my htc one x powers down, screen goes black, then the logo comes on with the att droplets, the att tones play, then it goes black again, wait a second, the logo comes on with the att droplets, the att tone plays , then it goes black again. it has been doing this for 45 minutes straight. i plugged it into the wall, same response. i am ready to smash it again the ground. i tried pushing in power button, noti=hing. ignores it, keeps repeating... i tried volume down with power button.. nothing.. no resopnse.. keeps repeating.. any ideas?