Place both devices on the same local Wi-Fi network. For newer models without a Home button, you must swipe down from the top right corner of the display to access the expanded panel.
Easy Screen Mirroring Guide Apple TV: Steps to Stream from iPhone
You will also need a strong Wi-Fi network that both devices can connect to, as a direct Bluetooth connection is not sufficient for media streaming. If you experience lag, lowering the video quality on the streaming app or moving your Apple TV closer to the router can help.
Ensure your iPhone runs iOS 12. Both your iPhone and Apple TV must be compatible with AirPlay 2, which is the protocol that handles the streaming.
Easy Screen Mirroring Guide Apple TV: Step-by-Step Setup
Weak signals can prevent discovery. Additionally, ensure that neither device is experiencing software bugs by checking for pending updates in the App Store and tvOS settings.
More About How to cast to apple tv from iphone
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