How to restart Nest Detect or reset it to factory defaults

If you reset Google Nest Detect to factory defaults, it will erase all settings and your Detect will appear Offline in the Nest app. We don’t recommend resetting Nest Detect to factory defaults unless you need to. For example, you might be asked to do this if you’re sending Nest Detect to us for a repair.

How to restart Nest Detect 

If you restart Detect, it will refresh its connection with Google Nest Guard. This may help fix any connection issues
it might be having. A restart of Detect doesn’t erase any
Detect settings.

  1. Make sure Google Nest Secure is set to Off Nest Guard off. Otherwise,
    the alarm will sound when you try to restart Detect.
  2. Press and hold Detect’s button for about 10 seconds. When the light ring pulses blue, release the button.
  3. Detect will reset itself and automatically try to connect
    to Guard again.
  4. Check your Detect with the Nest app to make sure it’s working normally. If it’s having trouble, the app will tell you.
  5. If you disarmed Nest Secure earlier, remember to arm it again.
secure detect light ring blue

If a reset doesn’t work, try taking out Detect’s battery

Taking out the battery is another quick way to solve many common issues. It won’t erase any settings, and Detect will automatically try to reconnect to Guard after you’re done.

  1. Make sure Nest Secure is set to Off Nest Guard off. Otherwise, the alarm will sound when you try to take out Detect’s battery.
  2. Pull Detect out of its backplate.
  3. Take out Detect’s battery and put it back in.
  4. Snap Detect back into its backplate.
  5. Detect will automatically try to connect to Nest Guard again. Check your Detect with the Nest app to make sure it’s working normally. If it’s having trouble, the app will tell you.
  6. If you disarmed Nest Secure earlier, remember to arm it again.
How to reset Detect to factory defaults

A reset to factory defaults will disconnect Detect from Nest Guard. It will stay disconnected unless you use the Nest app to install it again. However, a factory reset will not automatically remove Detect from your account, so you will still see it listed in the Nest app.

Only reset your Detect to factory defaults if:

  • You previously removed it from your account in the Nest app, but now you want to add it back to the same account.
  • You want to completely start over and re-install your Detect from the beginning.
  1. Make sure Nest Guard is set to Off Nest Guard off. If you don’t,
    the alarm will sound when you try to reset Detect to
    factory defaults.
  2. Press and hold Detect’s button for about 15 seconds.
    The light ring will pulse blue, then it will glow yellow.
    When it starts to glow yellow, release the button.

Nest secure detect light ring yellow image.

3. Detect will reset itself to factory defaults.

4. If you disarmed Nest Secure earlier, you can now arm it again.

When reset to factory defaults, Detect’s light will pulse blue. It will no longer look for activity in your home, and will be Offline in the Nest app. Or, if you’ve already removed it from your account, it won’t appear there at all.

5. Next, depending on what you want to do, follow the links below for more information and instructions.
How to remove a product from your account >

  • Add Detect back after removing it: If you previously removed Detect from your account in the Nest app, but now you want to add it back to the same account, you’ll need to use the Nest app to go through installation again.
    How to install Detect >

  • Start over and re-install Detect: If you want to completely start over and set up Detect as if it were new, you’ll need to remove it from your account and then add it back in the Nest app. First, here’s how to remove it from your account:
    How to remove a product from your account >

Next, here’s how to use your Nest app to add it back to your account:

How to install Detect >

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