I bought 2 years ago on ebay an aTV2 jailbreaked with aTV flash preinstalled. It is still in 4.x.
I would like to upgrade it to 5.3 for unthetered jailbreak and install a fresh (and legal) aTV Flash (just bought with cultofmac deal)
I read that apple still signing 5.3. Is it true ?
I dont want to brick my apple tv so how can i do that ?