how to make iphone work with tmoble

[vietanime]

this jailbroken iphone 4.0.1 wont let me use my tmobile sim card, how do i make it so i can use the phone with my tmoblie sim card

[Miz.Michele]

You have to unlock it. Did u do the jailbreak with the jailbreak me. If so then go into cydia and find ultrasn0w. That unlocks it. You're on 4.01 right

[vietanime]

thanx but i already figured it out