Hi guys i have a 3g ihpone unlocked and jailbroken on the 4.0. I was using it fine for a while on cincy bells plan and then my sim card got scratched up so i went and they got me a knew one. it was a 3g one this time. Well i put it in my old phone works great. then put it in the iphone and it keeps saying roaming or cinbell usa. why is it doing this what should i do?! Help please! if i turn on 3g it goes to no service! HELP!!!