Yes, you can add your Chromecast back to your Google Home app. It's a straightforward process, and you don't necessarily need to perform a factory reset.
Follow below steps to re-add your Chromecast:
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Open the Google Home app on your phone and go to Devices tab. Make sure you're signed in with the same Google Account you used before.
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Tap the '+ Add' icon (in the bottom-right corner).
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Select 'Google Nest or partner device'.
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Follow the on-screen instructions. The app should automatically search for devices that are ready to be set up. Your Chromecast, since it's no longer linked to a home, should appear in the list.
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Select your Chromecast from the list of available devices.
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Verify the code. Your TV will display a code, and the Google Home app will ask you to confirm that it matches. This ensures you're connecting to the correct device.
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Continue with the setup to assign it to a room and complete the process.
If for some reason the Google Home app doesn't find your Chromecast, you can try the following:
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Make sure your phone and the Chromecast are on the same Wi-Fi network.
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Reboot the Chromecast. Unplug the power cable from the Chromecast, wait for about 30 seconds, and then plug it back in.
- Reset Chromecast. Press and hold the button on the Chromecast until the light starts blinking, then release it when it turns solid white.
