My friend gave me his iphone (old 4GB model) and asked me to unlock it so he could put it on T-Mobile, but the problem is that the phone is not activated and only allows emergency calls, so i cant even get to the springboard (i was able to get to the phone app using *#307#) He got the phone from someone else, and the phone has a T-Mobile sim in it that doesn't work because the plan it was on was cancelled. when i got it, it was running 1.1.2 (not activated either), and i was able to downgrade to 1.0.2, and i tried to use iNdependence 1.3.1, but it just says "Failure, Error entering recovery mode". this phone is now running 1.0.2, but the baseband version is 04.02.13_G, could that be causing all my problems? i dont know the person he got it from so i don't think there is a way for me to get the original AT&T sim, and i don't know anyone else with an iphone, i don't even have one, he just asked me because i was able to jailbreak my ipod touch with no problems. if anyone can help me i'd really appreciate it...thanks.