Ringtone Volume Settings
If your Oppo phone rings too quietly or too loudly during calls, but notification sounds seem fine, you are likely looking at two separate volume sliders. Ringtone volume and notification volume run on independent controls, so adjusting one does not touch the other. This mix-up leads many users to think their phone volume is broken when it is just set on the wrong slider.
Turn Notification Badges On or Off Per App
If notification badges do not show up on some app icons on your Oppo home screen, the per-app Badge toggle is likely switched off. ColorOS only displays a small dot instead of a number, and each app has its own switch tucked inside the notification settings. Missing dots often get mistaken for a wider notification bug when it is really just this one setting.
Schedule Do Not Disturb
Turning Do Not Disturb on and off by hand every night gets old fast, especially if your sleep or work hours shift. On Oppo phones, a missed toggle means notifications either interrupt you too early or stay silent longer than planned. A saved schedule handles the on and off switch on its own, without you touching the setting again.
Block Calls and Notifications in Game Space
When you are deep into a match, an incoming call notification can pull you straight out of the game or slow down your device. On Oppo phones this happens because Game Space treats calls and notifications the same way it treats other interruptions, unless you tell it otherwise. Only apps added to the Game Space launcher are affected by this behavior.
Turn Banner Notifications On or Off Per App
If banner notifications keep popping up for apps you would rather have silent, or a chat app stopped showing previews at the top of the screen at all, the setting sits inside the individual app notification controls, not in a general notification menu. On Oppo phones running Coloros, banners can be switched off or back on separately for every single app, and in some apps even per notification category.