I am running with ATV 4.0 and followed the steps to jailbreak, after building the IPSW and extracting the file in itunes i got the following msg "This device isn't eligible for this build". I am running with the lastest version of Itunes as well as all other required updates on my Mac. Tried to restart serveral times and i also repeated the jailbreak process couple of times and same result.
Appreciate your help with this thing. P.S. i also tried to repeat the process on different Mac Machine and it didn't work. ATV O/S is 4.0 (i never updated since i bought the device)