Hard Reset NGM WINN
- Power off your device.
- Next hold and press Volume Up + Volume Down + Power button.
- Then if you see Recovery mode screen, then release holded buttons.
- Now choose from the menu option "wipe data/factory reset" using Volume buttons to scroll options, and Power button to confirm operation.
- Select option "Yes -- delete all user data".
- After that accept option "reboot system now".
Help! This doesn't work
Hard Reset will erase all of your data
All described operations you are doing at your own risk.