How to factory reset OPPO R19? How to wipe all data in OPPO R19? How to bypass screen lock in OPPO R19? How to restore defaults in OPPO R19?
The following tutorial shows all method of master reset OPPO R19. Check out how to accomplish hard reset by hardware keys and Android 9.0 Pie settings. As a result your OPPO R19 will be as new and your Qualcomm Snapdragon 845 core will run faster.
Hard Reset will erase all of your data
All described operations you are doing at your own risk.