Want to do a Hardware reset?
It is like a factory reset, the phone will have the status like you unboxed it first time.
1. With the phone turned off, press and hold the VOLUME DOWN button, and then briefly press the POWER button.
2. Wait for the screen with the 3 Android images to appear, and then release the VOLUME DOWN button
3. Press VOLUME DOWN to select CLEAR STORAGE, and then press POWER
4. When asked to confirm, press VOLUME UP
Good luck
Harry