Hard Reset via Hardware
If your device is completely unresponsive, you still have one additional option.
1. Press the power button and both volume keys for several seconds. The computer screen will eventually blink off. Continue to hold until you see the Android recovery logo and the large Start selection at the top of the screen.
2. Move the volume keys up and down to see the menu selections. If you don’t want to factory reset, you can try to Power down or to Restart bootloader from these selections. The power key will select the option.
3. If you are forced or desire to factory reset and wipe the device, select Recovery Mode. Your device will reboot. This reboot will be much slower than normal.
4. When you see the Android with red triangle, hold the power button down and press the volume up key until the wipe data/factory reset option appears. Press the power button to select it. Remember that this will erase all the data on your device.
5. With the volume keys select Yes – erase all user data and again press the power button to select this option.
