iphone 4s keeps restarting
My iPhone 4S keeps restarting. At first, it wouldn't lock so I let the battery wear all the way down. It recharged, but then started prompting to power down as though I had was pressing and holding down the power button. I would hit "cancel" to return to whatever I was doing but the power down message would keep reappearing. I tried resetting it and now the white apple icon just keeps appearing and disappearing every few seconds. I'm running OS6.