installed the new version. the installation is successful, after a reboot apple tv, apple symbol appears and then the screen displayed black.
It sounds like you may have been running an old version of Apple TV software. aTV Flash (black) 2.0 requires Apple TV 4.4 or later.
Your best option will be to re-jailbreak with Seas0nPass which will update your Apple TV to the latest version.
I had the same problem running 4.2.2. I re-ran the jailbreak and I’m good. It does look like I lost regular Hulu tough.
Same problem for me. Now i’m reinstalling the firmware via Seas0npass jailbreak.