Enabling all-screen mode on an OPPO phone usually refers to turning on full-screen gesture navigation as an alternative to the traditional virtual navigation buttons. This allows content such as apps and games to make better use of screen real estate. Here are the general steps to turn on all-screen mode:
Open Settings: On your OPPO phone, find and open the Settings app.
Look for the all-screen settings: In the settings menu, look for options related to Full Screen, Navigation Keys, or Gestures. This is usually located under settings with similar names such as "Convenience Assist", "Display & Brightness", or "System Navigation".
Choose how you want to navigate: In the full screen or in the navigation settings, you'll find a few different ways to navigate. Select "All-screen gestures" or a similar option to enable full-screen gesture navigation.
Adjust gesture settings: When you enable all-screen gestures, you may also be able to adjust specific settings for gestures based on your personal preferences, such as swipe direction, gesture response speed, and more.
Apply the changes: After applying the changes, your OPPO phone will use full-screen gestures to navigate instead of the traditional virtual buttons.
Please note that depending on your OPPO phone model and the version of ColorOS (OPPO's operating system), the exact name and location of the settings option may vary. If you can't find the above options, it is recommended to consult your phone's user manual or visit OPPO's official support page for more specific guidance.