Hi, I have a big problem. Somtimes my Iphone will just shut off for no reason at all. Then when I turn it back on it ask me to reconnect to Itunes. When I let it sit for a bit , it finally comes back on correctly. Is there anything I can do to fix this problem.

I had the same problem and what i did was force the update on the phone usind the power button and home and the i tunes will see it leave itunes and run apptapinstaler ane let it run and finish,it will restart a couple of times.That fix mine.

But I already have it unlocked and activated.