Hello, I have a 3G Iphone with firmware 3.1.3 (7E18), baseband 15.12.01. I used Spirit to jailbreak, I got the Cydia icon on my phone, then installed ultrasn0w. I put my Orange sim card in it and it worked fine and I was able to make and receive calls. After I turned it off and on, it is now saying "waiting for activation". It still says Orange in the top left, but no signal bars. I reintalled ultrasn0w many times it still doesnt work. I removed ultrasn0w and switched it back on again, that doesnt work either. Can anyone help please?