I've heard that using redsn0w you can do an untethered jail break for iOS 4.2.1, is that true?
If so, then, my iphone 4 has iOS version 4.0.2.. Could I possibly apply a 4.2.1 jail break to it?
If so, then, my iphone 4 has iOS version 4.0.2.. Could I possibly apply a 4.2.1 jail break to it?