I had posted in the 8.1 forum about my phone randomly rebooting. Thought it might have something to do with the 8.1 preview ( although it ran fine with it for 2 months ). The problem has progressed to the point that the phone constantly reboots. I cannot turn it off and have to wait for it to drain the battery from rebooting too many times. This sounds more like a hardware problem than software but the phone is out of warranty. Any suggestions?