Hello everyone! I have an iPhone 3GS Jailbroken & Unlocked with Ultrasn0w from Cydia on the 06.15.00 BB with IOS 5.0.1. For some reason, everytime I put my T-Mobile SIM Card, it will say, "searching" then to "no service". I've tried uninstalling Ultrasn0w and reinstalling and still nothing. Can anyone help me here?