Trouble with jailbreaking ATV2

I´m trying to jailbreak a friends ATV2. I´ve downloaded the newest itunes, seasononpass ATV Flash. But when I connect ATV2 and press creat IPSW it says "This device is not supported" you would think its a ATV3 but I´m certain it´s not. It has 720p!!!


​I read a thread which spoke about old blobs! If they mean an old restore I don´t have one.


What can I do??