2530 Views 1 Reply Latest reply: Jan 17, 2011 3:29 AM by markmc78
I eventually got it into DFU mode (I knew because Windows said it found new hardware "Apple iPhone (DFU mode)", and the screen was black).
During the 15 minutes it took in iTunes to download the 4.2.1 update, the phone didn't reboot at all, so I though "great".
I did the Restore, and everything went as it should during a Restore (white progress bar on iPhone, iTunes saying the phone had been successfully restored at the end), but once it was done the iPhone rebooted and went back into the constant rebooting problem.
Any more ideas?