iPhone 3G firmware 3.1.3 jailbroken with BB 4.28 wont unlock

[dotdot786]

hi
i have an iphone 3g with bb v 4.28 and firmware 3.1.3, i used ultrasn0w but when i put my sim into the phone it jus says no service.

any help would be great

i downgraded to 3.0 and used ultrasn0w still it says no service.

[mavrik101]

Try creating custom firmware with Redsn0w, then unlocking with Ultrasn0w. If you dont have the capability to create your own, download custom firmware and restore.