My jailbroken and unlocked 3GS froze last weekend and I could not reboot. In a panic I mistakenly let ITunes restore--now instead of having OS 3.1.2 I am at official 3.1.3 which I can not jailbreak using either pwnage or blackrain----how can I get back to my old status? I bought my fone in New York City in September from the Apple store and got and then cancelled my ATT contract. paying required cancellation fees. I believe Cydia has a signature for my fone but I am not sure (1.) how to insert AND save "22.214.171.124 gs.apple.com" in the hosts file on my new Snow Leopard IMac and (2.) even if successful how to get Cydia to restore to 3.1.2 This is my 2d IPhone-bought the original 3G in Istanbul a year ago, had it stolen in New York in September, then bought my 3GS fone at the NYC Apple store had it jailbroken and brought it back to Istanbul where I now live and work. I want to use my Turkish sim card---otherwise I have an expensive IPod without cellfone or internet ability.