Apple TV stuck on logo screen
Apple 4k TV 2nd gen black won’t boot up. Indicator light flashes, apple logo is displayed. Suggestions seem to be to connect to iTunes on pc but there isn’t a micro-usb/usb c on the back. Only power, hdmi and network.
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See: If you see a warning symbol on Apple TV - Apple Support
If you have an Apple TV 4K
If you see a warning symbol while trying to update the software on your Apple TV, or see a black screen on your TV and flashing indicator light on the front of your Apple TV, contact Apple Support.
So please contact Apple on how to proceed. They may ask you to send in your device.