Hard reset Oppo F9 (F9 Pro)

OS: Android 8.1 (Oreo); ColorOS 5.2

CPU: Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)

Display: 6.3 inches, 97.4 cm²

Battery: Non-removable Li-Po 3500 mAh battery

For Hard reset Oppo F9 (F9 Pro) use following steps

1. Press the Power button and turn off your smartphone

2. Press and hold the Volume Up and Power buttons at the same time for a few seconds (up to 20)

3. When the OPPO logo appears on the screen, you can release all keys

4. Choose English

5. You are interested in the "wipe data / factory reset" item, the Volume Up / Down keys are used to navigate the menu, and the Power key is used to confirm the selection

6. In the menu, go to "yes" and press the Power button

7. Go to the menu section "reboot system now"

8. Data reset procedure completed

Thomas Nilan
Smartphone Expert

Thomas Nilan is a mobile phone expert with in-depth knowledge of the Android and iOS operating systems, who understands the settings of various hidden features that allow you to expand the capabilities of your smartphone, as well as get information about what is going on inside the phone for future repairs. He is an authority in his field, which has allowed him to become a ghostwriter for several technology publications, and he enjoys writing small mobile applications for testing smartphones.