Fix an Android device that's restarting or crashing

If your phone randomly reboots, restarts, or shuts down without restarting, one of the solutions below could fix the issue.

Restarting constantly? Your phone could be stuck in a bootloop. Skip to Advanced troubleshooting (below).

Note: Some of these steps work only on Android 6.0 and up. Learn how to check your Android version.

Troubleshoot your phone

Check for Android updates
  1. Open your phone's Settings app.
  2. Near the bottom, tap System and then Advanced and then System update. If needed, first tap About phone or About tablet.
  3. You'll see your update status. Follow any steps on the screen.

Important: Settings can vary by phone. For more info, contact your device manufacturer.

Check storage & clear space
You could see issues if your phone's internal storage is full or almost full. To free up space that your phone needs to work properly, you can remove unnecessary files and clear cached data.

To check how much storage your phone has:

  1. Open your phone's Settings app.
  2. Tap Storage.
  3. See how much storage you have available. Your phone can start having issues when less than 10% of storage is free.

Important: Settings can vary by phone. For more info, contact your device manufacturer.

Troubleshoot apps on your phone

Check for app updates
  1. On your phone, open the Google Play Store app Google Play.
  2. Tap Menu Menu and then My apps & games.
  3. Apps with available updates are labeled "Update."
    • If an update is available, tap Update.
    • If more updates are available, tap Update all.
Close apps you're not using
  1. Open your phone's Settings app.
  2. Tap Apps & notifications And then the app. If needed, tap App info before the app.
  3. Tap Force stop.

Tip: To help see which apps cause problems, make a list of which apps you force stop.

Important: Settings can vary by phone. For more info, contact your device manufacturer.

See whether an app is causing the problem

The problem could be caused by an app that you downloaded. To see whether a downloaded app is causing the problem, you can restart your phone in safe mode.

Safe mode temporarily turns off all downloaded apps.

To restart in safe mode:

  1. Press and hold your device's Power button.
  2. On your screen, touch and hold Power off Power. Tap OK.
  3. After you see "Safe mode" at the bottom of your screen, wait to see if the problem goes away.

If your problem doesn't go away in safe mode

Restart your phone and skip to the next section.

If your problem goes away in safe mode

A downloaded app is likely causing your problem. To see which app it is:

  1. Restart your phone.
  2. One by one, remove recently downloaded apps. Learn how to delete apps. After each removal, restart your phone normally. See whether removing that app solved the problem.
  3. After you remove the app that caused the problem, you can add back the other apps that you removed. Learn how to reinstall apps.

Advanced troubleshooting

Remove cases & external batteries

If you’ve put a third-party case, external battery pack, or other accessory on your phone, try taking it off while you troubleshoot.

Make sure that external accessories don’t cover your phone’s sensors or touch its buttons.

Reset to factory settings

To remove any processes on your phone that could be causing the issue, you can reset your phone to factory settings.

IMPORTANT: A factory data reset will remove all data from your phone. While any data stored in your Google Account will be restored, all apps and their associated data will be uninstalled. Before you perform a factory data reset, we recommend backing up your phone.

If an app that you downloaded caused the issue and you reinstall that app, the problem could come back.

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