How do I unlock a 3G if I don't know the firmware or baseband?
The firmware and baseband is unknown. It was used before with ATT but has since been out of use for several months. It was never previously unlocked or jailbroken. I can't tell which firmware or baseband it has because when I turn it on it just says "no simcard installed, insert a valid sim card with no pin lock to activate iphone." Putting in a sim doesn't work (i tried a couple including an ATT sim).
How do I jailbreak and unlock this phone? I tried the latest black rain but it simply hangs at "entering recovery..."
I'm working with windows.
How can I get this phone working again?
Re: How do I unlock a 3G if I don't know the firmware or baseband?
If it has not been used for a while, you can be pretty sure it is not running OS 3.1
Originally Posted by tikvenik
Try redsn0w instead. Or use iRecovery to get more details of the iBoot version which can indicate what OS you are running.