Factory reset Apple TV 4K without remote
My Apple TV was not used for. a while.
Without an ethernet connection, it comes up and hangs trying to the the time/date update.
I believe I changed the password to the wifi SSID while it was unused. So, it may be failing to get a wifi link.
I then hooked up to an ethernet connection.
It comes up in showing Top Movies. It is unresponsive to remote.
I followed instructions to re-pair the remote (black version) after charging it all night. I see the Apple TV light blink after pairing. On reboot, no change.
I also tried using the iPhone X remote. The three other devices in my home show up, but not this unit. iPhone and Apple TV are on the same network - TV connected via ethernet and iPhone via wifi to the same router.
Is there any way to return to factory mode and start the setup from scratch?