How to Reset a Nest Secure Alarm System

Authored by: Support.com Tech Pro Team

1. Introduction

If your Nest Secure Alarm System is not working as intended and you've exhausted all other possible repair steps or you want to give it to someone else, you can reset it to factory defaults.

Resetting Nest Guard will make all of your Nest Detects appear as offline in the Nest app. If you would like to continue using your Nest Secure you will need to go through the set up again.

As a security precaution, a factory reset can’t be done if Nest Guard is armed in Home and Guarding or Away and Guarding, speaking a Heads-Up, sounding the alarm, or if the battery is critically low. 

2. Remove from App

1. Open the Nest app.
   

1. Touch the Settings icon, located in the top right corner.
   

1. Tap the product you’d like to remove (For Guard, Detect and Tag, tap Security, then the product you’d like to remove).
   

1. Scroll down and select Remove.
   

1. You’ll then be asked to confirm your choice.
   

3. Factory Reset

1. Set Nest Secure to Off with Nest Guard’s keypad, or the alarm may sound.
   

1. Press and hold down the 2 button on Guard’s keypad.
   

1. Keep holding down the button while Guard goes through a software version and check.
2. When Guard says, “Release to erase all settings,” let go of the button.
3. Guard will speak again and say, “Erasing all settings and returning to factory defaults in five seconds. Press any button to cancel.”
4. You’ll see the light ring turn yellow and begin a five second countdown.
   

1. If you don’t cancel, the light ring will spin blue and Guard will say, “Erasing all settings. This might take a minute."
2. When it’s about to restart you’ll hear, "Nest Guard is restarting. Be right back."