Not complaining. But, Jailbroke my ATV2 a few months ago ant it was tethered. I brought it on vacation with me. Just for the hell of it I tried to boot it with out a tether and it booted untethered. How did this happen?
There is a 5.3 untethered jailbreak avaliable now. It is possible to download the “5.3 Untethered” from the aTV Flash Black ‘Maintainence’ app to untether your device. You must have done that without realising.