1. First turn off the tablet.[br]
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2. Next press and hold "Power" until you see the manufacturers logo on the screen, then release the power button.[br]
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3. "Quickly" press "Volume Down" and hold it for few seconds until you see the message "Safe mode: ON" or something similar.[br]
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4. If you wanted disable it, simply repeat the steps above, and you should see "Safe Mode: OFF" rather than on.