hi all. I have an iphone 3G 3.1.2 that is unlocked and jailbroken and working fine on T-Mobile. It's in mint condition but i want to sell it and upgrade. My question is how do i wipe all the stuff i have on it (pictures, emails, bank info, app store log in, etc etc) so that the phone is completely wiped like it was new, doesnt have any of my personal info on it and also keep it unlocked and jailbroken? I'm afraid to reset anything as i think it will either leave my stuff on there or it will relock the phone? thanks! (I should also point out my power button has just suddenly stopped workign as well ) i hope someone can help me.