Problems Jailbreaking and Unlocking Original iPhone?
I have an original iPhone that I want to unlock for use with T-Mobile, as well as jailbreak. I have tried multiple jailbreaking/unlocking tools, and when I point them to the IPSW for the iPhone I always get some version of: "This is not a valid 4.0 IPSW." Sn0wbreeze's "F0recast" program says that the phone is jailbreakable and unlockable, and that it's running 3.1.3 firmware. I believe it's been updated to iOS 4.0---I put it into recovery mode and connected it to iTunes, and it updated it. I do not have an AT&T SIM card. Anybody know what to do?