Unlock & jailbreak iPhone 3G

[lcody]

My friend supposedly jail broke & unlocked my iPhone 4.2.1. & band 6.15 W/Cydia. & redsnow. But when I try to put in my go phone sim
Card it says no service & that my carrier AT&T is no longer available. Any suggestions? When I purchased my go phone, AT&T removed the original sim from my iPhone
.

 

[iJeff]

Correct me if im wrong but i believe you need to have the Greavy sim as well to complete your process.

 

[iCrank]

Thread moved to appropriate area.

 

[lcody]

I had not heard of a gevey sim before. Will it work on my version 3G & 4.2.1?

 

[Jmills87]

Gevey SIM is for iPhone4. You need to install ultrasn0w to unlock 06.15.00