Your friend might want to try a manual factory reset.
- Connect the Glo to a charger for several hours
- Slide and hold the power button to the right for 20-30 seconds (basically forces it off).
- Press and hold the light button
- Slide the power button to the right to turn on your Glo (may take a couple of tries).
- Continue to hold the light button until the LED starts rapidly flashing
- Release the light button. You should see a Restoring message on screen.