1. Power off the unit
2. Press "Power On/Off" and "VOL+" button together until "Android recover Robot" appears then release.
3. Press and hold the power button then right after press the volume + button then release. repeat until the blue menu appears.
4. In recover menu, "Volume +" & "Volume --" button control "Up" & "Down", Power On/Off button as "Confirm" button
5. Select the option "wipe data/factory reset"
6. Press "Power On/Off" button to confirm, scroll down using the volume - button to option stating "Yes -- delete all user data" and press "Power On/Off" button again.
7. Select the option "wipe cache partition" and press "Power On/Off" button to confirm
8. Select option at the top of menu "reboot system now", press "Power On/Off" button to confirm selection.
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