I have succesfully created the aTV flash drive. When I unplug my Apple TV, plug in the USB and then plug the Apple TV in again, the text starts rolling as described.
However, after a few seconds, the text becomes only halfly visible, as the other half falls off the screen on the left side. As far as I see, there is no conformation message that the update was succesful.
I waited for several minutes and the text didn’t move anymore. So I followed the instructions further. Unplugged the Apple TV, unplugged the USB and plugged the Apple TV in again. It then restarts, but looks exactly the same as it did before, with no new menus.
Any help would be appreciated!!