How to factory reset SAMSUNG Galaxy A21? How to wipe all data in SAMSUNG Galaxy A21? How to bypass screen lock in SAMSUNG Galaxy A21? How to restore defaults in SAMSUNG Galaxy A21?

The following tutorial shows all methods of master reset SAMSUNG Galaxy A21. Check out how to accomplish Hard Reset by hardware keys and Android 10 settings. As a result your SAMSUNG Galaxy A21 will be as new and your MediaTek Helio P35 (MT6765) cores will run faster.

How to hard reset SAMSUNG Galaxy A21

1. At first push Volume Down + Power button for a couple of seconds.
2. When the screen goes dark hold down Volume Up and Power keys for a few seconds.
3. Release all buttons when information about the SAMSUNG Galaxy logo.
4. Then select Wipe data/factory reset. In this mode use Volume keys to navigate and the Power button to confirm that.
5. After that choose Factory data reset from the menu and press the Power key once.
6. Finally select Reboot system now with the Power button.
7. Well done! All your data will be removed during the whole operation.