I have a 1.1.2otb and have trying for days to jailbreak it. Followed the instructions to the tee, but when I finally connect to iTunes to upgrade back to 1.1.2, everytime I get an error 1602 and the iPhone is stuck in recovery mode. If I could use the phone in 1.1.1, I'd stay there, but it won't activate. I've followed Apple's advice and removed iTunes, ipod, quicktime, and every helper, updater program, emptied the files and restarted. Reinstalled iTunes and the problem still happens. Anyone got any advice (btw PC user).