User manual

Turn on the phone: Press and hold the Sleep/Wake button for a few seconds until
you see the OPPO logo.
Force Restart the phone: Press and hold the Sleep/Wake and Volume Up buttons
until your device is turned on. View force restart your phone.
Enter Recovery Mode: Press and hold the Sleep/Wake and Volume Down buttons
at the same time to enter Recovery Mode.
3.1.3. Menu, Home and Return buttons
The traditional hardware buttons have been replaced with on-screen virtual
navigation keys which also offers fast and fluid gestures to operate your phone.
You can change the order of the virtual keys, and set them to appear only when
needed to free space on the screen.
Enable virtual navigation keys. Virtual navigation keys are default on. If you want
to enable them manually, go to [Settings] > [Smart & Convenient] > [Navigation
Keys] and click Virtual Key Navigation.