This morning my alarm sounded, but when I went to turn it off the screen hadn’t come on so I couldn’t turn it off. I held down the power button until the phone restarted, and when it came back to life I still had a black screen with the alarm sounding (the screen is working as I watched the bootscreen sequence). I tried removing the battery too, and again when I restarted the alarm was going.
Any ideas? Looks like I’ll have to do a factory reset just to be able to use my phone because I can’t get the phone to do anything except vibrate and beep in my hand. (It did, in fairness, wake me up pretty effectively as I tried to work out what the hell was going on at 0530 this morning!)