- The device must be turned off, so hold down the Power rocker for a while
- Afterwards press and hold together Volume Down and Power button for a few seconds.
- You can release held keys when you see the Acer logo shows up.
- In the next step use Volume buttons to select "clear eMMC" and tap the Power button to confirm.
- Excellent! You perform a factory reset operation and erase pattern lock protection.
Hard Reset ACER

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