Hey, My friend is selling me his clean iphone 3g running 3.1.2. He wants to restore it before selling it to me. So he does not mess up and upgrade to 4.1 can i just opt click restore it with the 3.1.2 ipsw. Or is their something else i need to do? He also has an at&t sim so i don't have to activate it before i restore? Thank You Patrick One more question, after we restore his iphone can i use his sim and jailbreakme to jailbreak 3.1.2 to save me time?