Hi, Using redsnow, I restored iOS 6.0.1 and jailbreak and unlock the iPhone 3GS. Everything went success. However, it keep losing carrier signal and wifi. This is happening every other 2/3 minutes. What's the problem?
What did you use to unlock it on iOS6.
If you used Ultrasn0w, it has not been properly updated for iOS6, so that is why you are having poor performance.