I've been looking all over the place for one! I don't care if it's tethered or untethered... Either way is fine! I need one preferably without the computer but if not then that's fine! I've tried Redsn0w and Greenpois0n and I can't fins an IPSW or whatever it's called! Please help me! If you don't know then can you maybe give me a way to down grade it to 4.1.3 so I can jailbreak it and then I'll just upgrade it again later? Please help! Thanks