Hey everybody, so I have an iPhone 4 that's on iOS 6.1 with a 1.59.00 baseband. I've googled around and people have a similar problem that the latest ultrasn0w 1.2.8 is giving everyone a problem that leaves them with only about a bar of signal or no service at all, which is happening to me also for my t mobile sim card. Some people said to buy an IMEI unlock, so I did and still the same problem. I'm wondering has anyone gotten their iPhone 4 iOS 6.1 to work with an IMEI unlock that was jailbroken also?