Error entering DFU mode

Hi Firecore Team and Members

Im struggle with the Install of Seas0nPass, i just follow the instructions of that link Jailbreaking 101 - Seas0nPass – Firecore!

But every time i hit the station on getting in DFU mode it crashes in an Error like: confused

And yes i have the Atv Gen2 A1378

So i hope you can help me to bring firecore back to my Atv