1. Power off the inReach.
  2. Press and hold the XDOWN, and Power buttons simultaneously 
  3. The device will power on into Firmware Update Mode.
  4. Press and release the SOS button and you will see the LED flash Green and Red.
    Note: Verify the device is in Firmware Update mode as shown in the image above.  
  5. Power off the inReach by holding the Power Button
  6. Once powered off, power on the inReach and your device is now reset.