I have an iPhone 4 and was running jailbroken 4.0. I installed MyWi from Cydia and upon respring, the phone got stuck at the Apple logo. After several attempts to reboot and getting stuck at the same place, I put it in DFU mode and tried to restore to a 4.0 I DLed from iclarified. iTunes 9.2 wasn't letting me do it, so I decided I'd let it restore to 4.1. It got halfway through, then errored out at 1004. Tried again and it got a quarter of the way through and froze for 45 minutes. Upgraded to iTunes 10 and tried, getting the same result. I can get it to DFU mode no problem, but can't get it to restore. HELP!