Alright I have no idea what one is but I know I need one. I have a 3gs that I restored after the nice lady at 1800-my apple assured me that I would be able to use it as an iPod with no problems well problem is that I cannot get it to work cus I have no sim card. So I have jailbroke in the past with redsn0w and man do they make it easy. But there latest offering will not cut it so I'm trying snowbreeze but it requires an ipsw. Can anyone help me? Steer me in the right direction maybe a click able link? Also am I even headed in the right direction?