My iPhone 3Gs was jailbroken and unlocked with the iPad firmware and 5.1 IOS. Using Redsn0w I had a custom 5.1.1 IPSW made. I was able to successfully go through iTunes and restore using the new Custom IPSW. But my phone rebooted in a Factory Setting. It asked me to install the original Sim -- which I don't have anymore. Anyone know what I'm doing wrong here or what happened. Grateful for any advice.