ATV 4gen status lights, but no function
I’ve just picked up an out-of-warranty ATV 4gen 64GB.
Setup went fine, pairing the remote and setting up via my iPhone. It worked fine for a few hours before restarting.
Since then, the status light flashes at a slow rate, before doubling in frequency. I have tried a restart via the remote which causes the status light to flash fast enough to (almost) appear on steady.
I have disconnected it from power for minutes and then later overnight, but this has not helped.
I have tried a different HDMI cable, directly into my TV.
As ATV does not boot, I cannot use any menu options to try to fix the problem.
I have ordered a USB C cable to restore from iTunes, but this will only arrive tomorrow.
Have I missed anything that I could be doing today?
Apple TV, tvOS 11.2.6