I never really paid much attention to jail breaking before, but I moved to Israel last week and now I want to unlock my iPhone 4 to use it with an Israeli carrier. I updated to 5.0 (which I'm now thinking was a mistake). I think my baseband is 04.11.08, if I'm looking in the right spot. Is there a way to unlock this? I did the tethered jailbreak with Redsn0w and I have Cydia installed. I then installed Ultrasn0w, but when I put an Israeli SIM card in, it said "no service". How do I unlock it? Thanks.