Hard Reset ZTE Z431
- When your device is off, then power on.
- Tap emergency dial, and just type this: *983*22387#
- Select Erase Everything.
- Power on the cell phone.
- Next from the home screen select Menu -> Settings -> Privacy -> Factory data reset -> Reset phone -> Erase everything.
- Now your phone will restore and reboot.
Help! This doesn't work
Hard Reset will erase all of your data
All described operations you are doing at your own risk.