Hi everyone, My iPhone 3GS kept turning on and off by itself so I had to restore it to iOS 6.1. I jailbroke it and installed Ultrasn0w fixer and Ultrasn0w but it didn't unlock my phone. Then I found it that I was on BB 06.15.00 so I downgraded my firmware to iOS 4.1 and downgraded BB to 05.13.04. At that point ultrasn0w was working fine and unlocked my phone. Then I restored my phone onto iOS 6.1 in redsn0w and jailbroke it. Once again I installed ultrasn0w fixer and ultrasn0w in Cydia but my iPhone is still not unlocked. I disabled 3G and restarted my phone several times. I run out of ideas now. Can anyone please help me?