How can I fix Signal incompatible Issues with Apple TV 4K?

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How can I fix Signal incompatible Issues with Apple TV 4K?

I have just bought a new Apple TV 4K and plugged it into my sharp tv. I get a message on an otherwise blank screen: incompatible signal received please check output signal from external device. I have seen forum answers to this that suggest pressing < and - (volume down) to cycle through signals. I have been sitting here for 20 minutes with no change. I have tried a new HDMI cord and a different port on my tv. The old apple tv worked fine but will not be supported by netflix any more.

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Apple TV 4K, tvOS 17

Posted on Aug 1, 2024 1:16 AM

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Answer 1

Top-ranking reply

Urquhart1244

Level 10

150,220 points

Aug 1, 2024 1:38 AM in response to eastwestguitars

A new, unused Apple TV box would start with the setup guide, and couldn’t have incompatible signal settings yet.

The found procedure is for when you switch the box between TVs with different video characteristics, which could lead to incompatible signal settings.

Please review the other procedures as well:

If your Apple TV isn't working, won't turn on, or shows a black screen - Apple Support

Does your Apple TV box show a continuously glowing status light on the front? Then it started up properly and passed its startup test. If it is powered, initially blinks for ~15 seconds, then doesn’t show a continuously glowing status light, then the proper startup failed.

Check the settings on the TV for the HDMI port to which the Apple TV box is connected. Find a reset setting for defaults, if you can, else please report what HDMI configuration options the manufacturer lists.

What is the exact model TV? Maybe an online manual provides more insights.

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How can I fix Signal incompatible Issues with Apple TV 4K?

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