I jailbroke my apple tv2 a couple of years when I first got it. It is a tethered jailbreak. The apple tv software version is 5.0. When I check to see if I can untether it, it says the only jailbreak for that version is tethered, but version 5.0.1 and many others have untethered. Is there a way to not update my firmware all the way to 6.0.2 and just 5.0.1 so I can get an untethered jailbreak?