A master reset will result in the loss of all data stored on the device including 3rd party applications.
This type of reset should only be used as a last resort after all other troubleshooting steps have been exhausted. It is highly recommended that you complete a backup of the device information and disable Device Protection before proceeding with the steps in this tutorial.
With the device powered off, press and hold the Volume Down key.
Note: If Device Protection is not disabled, the login credentials for the Google account previously associated with the device must be entered to complete the initial setup.
While holding the Volume Down key, press and hold the Power key.
Release both keys when the Recovery mode screen appears.
Note: The previous Google username and password will be required to set up this device if you do not disable Device Protection.