How do I force my Droid Mini to reboot or restart?

In the unlikely event that your device becomes unresponsive, try a force reboot.

Warning: Don't attempt to remove or replace the battery yourself —doing so may damage the battery and could cause burning and injury.

To reboot the device, press and hold the power key + volume down key for 10 seconds.

Notes:

• Data on your phone will not be deleted.
• Ensure that your device is charged to a minimum of 5%. If your battery is below 5% then the device will not power on. A device that is completely drained should be charged, for a minimum of 15-20 minutes, using the provided wall charger. 

Click here for instructions on how to perform a factory reset.