- Remove the battery, wait for 10 seconds, then reinsert the battery.
- Press and hold the VOLUME DOWN button, and then briefly (Quickly) press the POWER button.
- Wait for the screen with the three Android images to appear, and then release the VOLUME DOWN button.
- Press VOLUME DOWN to select FACTORY RESET, and then press the POWER button.
- Wait for Handset Power On
- Hard Reset Done
Performing a factory reset via settings: