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Samsung Galaxy A21s
Android 10.0
1. Find "Factory data reset"
Slide two fingers downwards starting from the top of the screen.
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Press the settings icon.
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Press General management.
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Press Reset.
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Press Factory data reset.
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2. Restore factory default settings
Press Reset.
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Press Delete all. Wait a moment while the factory default settings are restored. Follow the instructions on the screen to set up your phone and prepare it for use.
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