I have a jailbroken iPhone (firmware software 3.0) that i would like to UNjailbrake. I know that all i need to do is restore, but i hesitate to do that as iTunes will not let me do it while not connected to the internet. i'm afraid my phone will lock up or something like that. Also if i want to restore it it says it will restore it and add an update to that restore (if i restore it wants to update to 3.1.3). WHat do I do. please help.