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Remotely ring, lock, or erase a lost device

If you or a friend lose a device that's signed in to a Google Account, you can use Android Device Manager to remotely ring, lock, or erase that device. When Android Device Manager interacts with the device, it'll get a notification. You can also use Android Device Manager to show your device's location.

Important: Android Device Manager won't work for devices that are turned off, or that don't have a Wi-Fi connection or mobile data connection with an active SIM card.

Remotely ring, lock, or erase a lost device

Tip: If you've linked your phone to Google, you can locate or ring it by searching for find my phone on google.com.

Use the Android Device Manager website

Before erasing your device: Remotely erasing a device performs a factory reset. This removes all data from the device. While any data stored in your Google Account can be restored, all apps and their associated data will be uninstalled.

  1. Sign in to your Google Account on android.com/devicemanager.
    Tip: If you're helping a friend, we recommend opening an incognito tab in Chrome and having your friend sign in to the Google Account used on the lost device.
  2. To select the lost device, click the arrow next to the device name. Android Device Manager will show the location of that device.
  3. Select an option. You may need to turn on Lock & Erase first.
    • Ring
      Rings your device at full volume for 5 minutes — even if it's set to silent or vibrate.
    • Lock
      Locks your device with a password if you don't already have one set.
    • Erase
      Permanently deletes all of your data. Android Device Manager may not be able to wipe the content of an SD card in the device. After you erase the device, Android Device Manager will no longer work on it.
  4. If you're helping a friend, your friend can sign out when finished by tapping Sign out at the top of the screen. Otherwise, after 5 minutes of inactivity, sign-out is automatic.
Use the Android Device Manager app

If you have another device, or are using a friend's device, you can use the Android Device Manager app to remotely ring, lock, or erase the lost device. You'll need to have the Android Device Manager app installed on the device you plan to use.

Before erasing your device: Remotely erasing a device performs a factory reset. This removes all data from the device. While any data stored in your Google Account can be restored, all apps and their associated data will be uninstalled.

  1. On the device you're using, open the Android Device Manager app Android Device Manager app.
  2. Sign in to your Google Account.
    Tip: If you're helping a friend, tap Device Manager at the top of the screen and then tap Guest to have your friend sign in to the Google Account used on the lost mobile device.
  3. To select the lost device, tap the arrow next to the device name. Android Device Manager will show the location of that device.
  4. Select an option. You may need to turn on Lock & Erase first.
    • Ring
      Rings your device at full volume for 5 minutes — even if it's set to silent or vibrate.
    • Lock
      Locks your device with a password if you don't already have one set.
    • Erase
      Permanently deletes all of the data on the device. Android Device Manager may not be able to wipe the content of an SD card in the device. After you erase the device, Android Device Manager will no longer work on it.
  5. If you're helping a friend, your friend can sign out when finished by tapping Sign out at the top of the screen. Otherwise, after 5 minutes of inactivity, sign-out is automatic.

Add a phone number to your lost device's lock screen

If you've lost a device, you can let anyone who finds that device call you at a different number directly from the lock screen.

  1. Sign in to your Google Account on android.com/devicemanager.
  2. If you have more than one device, use the arrow next to the device name to choose the lost device.
  3. Select Lock.
  4. In the "Phone number (optional)" field, type a phone number where you can be reached.
  5. Select Lock. A button to call the number you typed will show on the phone's lock screen. Anyone who finds the phone can dial that number from that phone.

To remove the phone number, follow the steps above and delete the phone number.

Related links

Amy

Amy is an Android expert and author of this help page. Leave her feedback below about the page.

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