Show or Hide RAM Info in Recent Tasks
When you swipe through open apps on your Oppo phone, the Recent tasks screen only shows app previews by default, with no memory data at all. If you want to see how much RAM is currently in use without opening a separate app or tool, that information stays hidden until you switch it on in Coloros.
Turn Emergency Alerts On or Off
If your Oppo suddenly blasts a loud siren-style alert during a meeting or at night, Wireless emergency alerts is doing exactly what it is designed for. These cell broadcast warnings about extreme weather or safety threats are switched on by default under ColorOS, and many users only notice the setting once an unwanted alert interrupts them.
Customize Smart Sidebar Quick Access
If your Oppo's Smart Sidebar is packed with tools you never open, or missing the one app shortcut you actually need, the Quick access list needs an edit. The sidebar mixes three shortcut types: Quick Tools like screenshot or screen recording, Quick Apps that open in a floating window, and plain App shortcuts. Left unedited, you keep swiping past icons that only get in the way.
Turn Touch Sounds On or Off
If your Oppo phone plays a short click every time you tap the navigation buttons or on-screen keys, the 'Touch sounds' feature is active. Some people find this feedback helpful, others just want a quiet phone without extra clicks on every tap. The setting sits separately from your ringtone and notification sounds, so muting your phone will not remove it.
Remove a Folder from the Home Screen
Deleting a folder on your Oppo phone can go two ways: either the folder disappears together with every app icon inside it, or only the folder itself is dissolved and the apps land back on the home screen. Mixing up these two options often leads to accidentally losing apps you actually wanted to keep.
App Drawer: Turn On or Off
New apps on your Oppo landing straight on the home screen instead of a separate app list usually means the App Drawer is switched off. Without it, every install adds another icon to your screen, and there is no dedicated overview to browse through installed apps. On ColorOS this behavior is controlled through the home screen layout mode, not a standalone app-drawer toggle.
Turn Lock Screen Notifications On or Off
If notifications keep showing full message previews on your Oppo lock screen, the 'Lock screen notifications' option is likely set to display title and body for that app. ColorOS handles this setting per app, so one app can stay silent while another still alerts you. Left on the default, anyone who glances at your phone can read message content before you unlock it.
Set Dark or Light Theme for the Messages App
If the Messages app on your Oppo phone still shows a bright white background at night, it is running the light theme regardless of your system-wide dark mode setting. Coloros lets you set the theme for Messages on its own, which cuts glare and can lower battery drain on OLED screens. This option sits inside the app itself, not in the general display settings.
Turn Camera Watermark On/Off
If every photo or video from the camera app carries an unwanted overlay with the phone model, date, time, or location, ColorOS added that watermark automatically. On some Oppo phones the setting stays active after a reset or software update. It only affects the built-in Camera app, not third-party apps or the gallery.
Turn Off App Lock
If Oppo's App lock keeps asking for your privacy password every time you open a protected app, that extra step gets old fast. Turning off App lock releases all currently locked apps and their data at once, so the password prompt stops appearing. You still need to confirm your privacy password to make the change.
Hide and Show Apps on the Home Screen
Anyone can open your banking or messaging app just by tapping its icon on the home screen. Coloros lets you hide selected apps behind a password prompt, but the setting sits inside the Privacy menu and is easy to overlook. Once an app is hidden, it disappears from the app drawer and only reappears after you unlock it through a hidden code.
Turn Screencast On or Off
If your Oppo screen does not show up on the Smart TV or another display, Screencast is often switched off or the target device is missing from the list of available receivers. Screencast mirrors your phone screen over the network, but it only works once the feature is enabled on the Oppo and the other device is discoverable. Without that active connection, nothing gets transmitted even if the TV is on and ready.
Enable Vibration in Silent Mode
Switching your Oppo to silent mode also kills the vibration, so you miss calls and messages without any signal at all. ColorOS does not have a separate vibrate mode like stock Android, so silent and vibrate are tied together unless you change one setting. Once you know where to look, you can keep your phone quiet but still feel it buzz.
Turn On or Off Flip to Mute Incoming Calls
If your Oppo phone keeps ringing loudly during meetings even after you flip it face-down on the table, the flip-to-mute gesture might be turned off. This gesture silences an incoming call the moment the screen faces down, but only when it is enabled in the gesture settings. Some users also find the opposite problem: calls go silent unexpectedly whenever the phone lies flat.
Show Connection Speed in Status Bar
If you keep opening the data usage screen just to check how fast your connection is, Oppo can show that number right next to the signal icon instead. On Coloros this real-time network speed indicator is switched off by default, so the status bar only displays signal strength and battery. Turning it on adds a live Mbps or KB/s reading that updates while you browse or stream.
Turn On/Off Contact Suggestions in Messages
Typing a name into a message on an Oppo phone should pull up matching contact details automatically, but nothing shows up. This happens because the 'Suggest Contacts' feature inside the keyboard settings is switched off by default, even though the contact itself is saved correctly on the device.
Forget a Saved Wi-Fi Network
If your Oppo phone keeps reconnecting to an old Wi-Fi network with a wrong password or a router you no longer use, it is still sitting in the saved network list. ColorOS holds on to every network you have ever joined until you remove it yourself, which can cause slow reconnects or a jump to the wrong access point when two networks share a similar name.
Turn Always-On Display On or Off
If your Oppo screen stays completely black when locked, or notifications never appear on it, the Always-On Display setting is likely involved. This feature can show time, date and battery level permanently or on a schedule, and on newer ColorOS versions also notification icons. Whether it is active, and how much it shows, depends on a toggle that is easy to overlook in the display settings.
Allow or Deny Apps to Modify System Settings
If an app suddenly asks for permission to modify system settings, it usually wants to adjust things like your ringtone, brightness, or wallpaper, not your lock screen or passwords. On ColorOS this permission sits deep inside the special app access menu, so most users never find it on their own. Without it, some apps fail silently when they try to change these settings automatically.
Turn Keyboard Sound On or Off
Typing without any click sound, or suddenly hearing it after a system update, can be confusing since Oppo phones don't have a dedicated keyboard sound toggle inside ColorOS itself. The setting actually lives inside the Gboard app that most Oppo devices use by default. On many devices this sound is turned off from the start, leaving you unsure where to look for it.
Add App Shortcut to the Home Screen
On Oppo phones running the App Drawer layout, newly installed apps stay tucked away in the drawer instead of landing on the home screen. If you keep swiping up just to launch one app, you are missing a shortcut that needs to be placed there manually.
Personal Hotspot: Change Name, Password and Band
Your Oppo phone activates a personal hotspot with a generic name and a default password, which is fine for a quick test but risky for daily use. If you want other people to recognize your hotspot easily or you need a stronger password, you have to adjust these settings yourself.
Turn On/Off Emergency SOS
If pressing the power button five times keeps launching Emergency SOS by accident, or the shortcut refuses to trigger when you actually need it, the Emergency call quick access toggle is probably set the wrong way. The feature works straight from the lock screen and dials your saved emergency contacts, so an unwanted trigger during everyday use can be just as annoying as a missing one in a real emergency.
Auto Switch to Ear Receiver Setting
During calls, your Oppo phone can automatically move audio from the speaker to the earpiece as soon as you lift it to your ear. If this motion control misfires, calls stay on speaker in public or jump to the earpiece when you actually wanted to keep them on speaker, usually because Auto switch to ear receiver is set the wrong way.