Is apple tv 1 gen jailbreakable?

Can someone please tell me if apple tv 1 gen still jailbreakable? I’m doing this jailbreak for a friend, but don’t know if it still available for jailbreak?

Search for ATV1 Patchstick on Google or simply purchase aTv Flash for ATV1 available from Firecore.

You don’t need to Jailbreak Apple TV 1. Its already Jailbroken by factory. Just download Patchstick and flash when rebooting.

Just follow this link instruction…and make sure you must try 2GB flash stick. I tried few types of 2GB stick and one of them worked successfully. Good Luck!