Ok I bought an iphone from a friend at school. It was dead when I got it so I charged it when I got home. Now its on the recovery screen. I dont know exactly what kind of iphone it is but the 3.1.2 update should be free for the iphone correct? If not how can I get it since I paid for the 3.0 update for my touch. Im gonna restore it. Once I do then can I have steps for jailbreaking & unlocking the iphone and using the SIM card from my samsung eternity for signal. Also is there a way I can prevent data charges from going onto my bill?