So I have a 3GS with 3.1.2 firmware on baseband 5.11.07 so I know it's unlockable. I jailbroke it with redsnow. It seems to me that the easiest way to unlock it would be with blackrain, but since I already jailbroke it with redsnow would it be safe to use blackrain? If blackrain won't help then what would be the best way to approach unlocking it?