Ok i'm having a problem with this update/JB/Unlock. I've gotten to the part where it's in DFU mode but iTunes isn't seeing the phone at all so i can't start the restore. I've gotten it out of DFU mode and tried it again but the same thing. I have a iPhone 4 32Gig GSM on BB 01.59.00 which was already unlocked on 4.1 but want to update. I've had problems with iTunes locking up when a phone is connected. Could this be the problem? It's not locked up right now but it's not showing the phone on the left side bar. I'm using Windows 7 64bit Ultimate.