Gaby
Member
- May 21, 2008
- 74
- 0
- 6
okay yesterday i upgraded my jailbroken iphone to 3.1.3 firmware and now my iphone just shows a usb cable pointing to itunes and when i had hooked it up to itunes it says the sim card in this phone is not supported.I looked up on the internet on how to downgrade i tried to do it but it doesnt want to work also my iphone is jailbroken to tmobile and idk how to downgrade because i think that is what it needs how can i fix it?