my Apple TV is telling me "go to support.apple.com/appletv/restore
my Apple TV is telling me
"go to support.apple.com/appletv/restore
then the page says this page is not available
Apple TV HD, tvOS 9
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https://support.apple.com/appletv/restore describes how to perform a Restore externally, through a computer, connected by USB cable. The restore will re-install the system software, as downloaded through the computer.
- The Apple TV will have to be powered by itself, at the indicated moment.
- The USB cable needs to support data transfer (not just a charging cable from some other device).
It is a bit different using Macs running macOS Mojave 10.14 or earlier (using the iTunes application), versus Macs running macOS Catalina 10.15 or later (using the sidebar of a Finder window).