How to factory reset OPPO A9? How to wipe all data in OPPO A9? How to bypass screen lock in OPPO A9? How to restore defaults in OPPO A9?
The following tutorial shows all method of master reset OPPO A9. Check out how to accomplish hard reset by hardware keys and Android 9.0 Pie settings. As a result your OPPO A9 will be as new and your MediaTek Helio P70 core will run faster.