I'm sorry if this has been answered or is an easy question, but I'd appreciate the help as I have read a few things but can't seem to locate the answer.
I have a JB 3.1.2 3GS with old bootrom and SHSH on file with Cydia. I originally jailbroke using blackra1n. Never unlocked and never upgraded to 3.1.3 or iTunes 9.2. I pre-ordered iPhone4 and want to wipe the 3GS but keep it jailbroken and unlocked so that I can sell it. I have no interest in upgrading to iOS4.
What do I need to do to accomplish this?
I have a JB 3.1.2 3GS with old bootrom and SHSH on file with Cydia. I originally jailbroke using blackra1n. Never unlocked and never upgraded to 3.1.3 or iTunes 9.2. I pre-ordered iPhone4 and want to wipe the 3GS but keep it jailbroken and unlocked so that I can sell it. I have no interest in upgrading to iOS4.
What do I need to do to accomplish this?