Hard Reset OPPO F9

How to factory reset OPPO F9? How to wipe all data in OPPO F9? How to bypass screen lock in OPPO F9? How to restore defaults in OPPO F9?

The following tutorial shows all method of master reset OPPO F9. Check out how to accomplish hard reset by hardware keys and Android 8.1 Oreo settings. As a result your OPPO F9 will be as new and your MediaTek Helio P60 (MT6771)  core will run faster.

First method:

  1. At first switch off the device by pressing the Power button for a couple of seconds. HardReset OPPO F9
  2. Then hold down Volume Down and Power keys together for a few moments. Factory Reset OPPO F9
  3. When the OPPO logo appears let go of all buttons.
  4. From the menu choose English. Permanently delete data from OPPO F9
  5. After that select Wipe data two times. Hard Reset OPPO F9
  6. Finally tap OK two times and Reboot.
  7. Perfect!

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WARNING !
Hard Reset will erase all of your data.
All described operations you are doing at your own risk.
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