Originally Posted by djentee
same thing happened to me with the endless reboot. what i did was:
1. Closed iTunes
2. Disconnected iPhone from USB.
3. Restarted iTunes.
4. Hold down HOME + POWER buttons.
5. Reconnect USB to iPhone while holding down HOME & POWER buttons.
This should make iTunes recognize the iPhone again. VOILA!
Hope this helps.
I can testify to this. It always works no matter what, as far as I've seen.