If you can’t turn Android Phone on or access settings, you can still perform a factory reset by using the hardware buttons on Android Phone.
- Remove the battery, wait for a few seconds, then reinsert the battery.
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Press and hold the VOLUME DOWN button, and then briefly press the POWER button.
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Wait for the screen with the three Android images to appear, and then release the VOLUME DOWN button.
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Press VOLUME DOWN to select FACTORY RESET, and then press the POWER button.