Optimize Battery Consumption
If your Oppo phone drains fast even when you barely touch it, background apps are usually pulling power without you noticing. Oppo phones include a function that scans your usage and shows exactly how much charge you could save, app by app. Knowing which processes it restricts helps you decide if the automatic suggestion fits how you actually use your phone.
Reset Advertising ID
Ads on your Oppo phone keep matching your recent searches and app habits a little too closely. That happens because every device carries a fixed Advertising ID that links your behavior across apps for personalized ads. Turning off interest-based ads alone does not remove that link - the ID itself needs a reset.
Hide Photos and Videos in the Gallery
If a photo or video keeps showing up in your gallery even though you want it out of sight, ColorOS does not let you hide entire albums. Instead, single photos and videos get marked as private and disappear from normal browsing. Getting them back means digging into a separate area that is protected by your lock screen password, fingerprint, or face recognition.
Set Up Fingerprint Unlock
If your Oppo phone still asks for PIN, pattern or password every time you wake the screen, the fingerprint sensor probably is not set up yet. Fingerprint unlock only works once a backup method like PIN or pattern is already active, since ColorOS needs that fallback to register your print. The same fingerprint also works as a shortcut to reset a forgotten lock screen password.
Turn Color Correction On or Off
If reds and greens look almost identical on your Oppo display, or if certain interface elements blend together, a color vision difference such as Deuteranomaly, Protanomaly or Tritanomaly might be affecting how you read the screen. ColorOS includes a built-in correction tool that shifts on-screen colors to make these differences less noticeable, but it only works once the right mode is selected. Leaving it off or set to the wrong mode means icons, charts and notifications can stay hard to distinguish.
Change Lock Screen Wallpaper
If your lock screen keeps showing the same picture as your home screen, ColorOS is applying wallpaper changes to both screens by default. This happens with your own photos, standard wallpapers, and live wallpapers alike. You need to pick the target screen manually to keep the two separate.
Change Security Question for Privacy Password
If you cannot remember the answer to your privacy password security question, you lose the only way to reset a forgotten privacy password on your Oppo phone. ColorOS ties the entire recovery process to that single question and answer, so a weak or forgotten one leaves protected apps and files out of reach. Swapping in a question you will actually remember closes that gap before it becomes a problem.
Add App Exceptions to Do Not Disturb
If Do Not Disturb mode silences a messaging or work app you actually need to hear from, that is expected behavior on Oppo phones, not a bug. Coloros mutes every app by default once Do Not Disturb turns on, and only apps added to the allowed list keep making sound and showing alerts. Without that exception, calls, chats and reminders from that app stay silent until you turn the mode off.
Add Trusted Places to Smart Lock
If your Oppo phone keeps asking for a PIN or pattern even at home or in the office, Smart Lock's Trusted Places feature is probably not configured yet. Without a saved location, the phone falls back to your regular screen lock everywhere, including places you visit every day. Trusted Places keeps the device unlocked within roughly 50 meters of a spot you pick, as long as location services stay on.
Set an Alarm with Custom Repeat and Ringtone
On Oppo phones several alarms exist side by side, each with its own repeat pattern, snooze length, vibration and ringtone. When you set up a new alarm or edit an existing one, it is easy to miss where these individual options actually live and end up with the wrong sound or repeat days. This mixes up daily wake-up alarms with one-off reminders.
Volume Buttons Function for Camera
On Oppo phones, pressing a volume button while the Camera app is open takes a photo instead of adjusting the sound level. This happens because Coloros assigns the buttons to shutter control by default, and the same option can be switched to zoom instead.
Add Apps and Games to Game Space
If a game or app does not launch inside Game Space on your Oppo phone, it usually has not been added to the managed list yet. Without that step, the app starts as a normal application and misses out on performance tweaks, do-not-disturb, and other Game Space functions.
Change Font Size
If text on your Oppo phone looks too small to read comfortably or too cramped when enlarged, ColorOS lets you adjust the font size on its own. Only the letters scale up or down, while icons, buttons and layout keep their original size, which can make some screens look unbalanced at the extreme settings.
Turn Personalized Ads On or Off
Every Oppo phone carries a unique Advertising ID that networks use to build a profile from your app usage and browsing habits. If ads keep following you across unrelated apps with oddly specific products, that identifier is the reason. You can either reset this ID for a fresh start or opt out of ad personalization completely.
Adjust Touch & Hold Delay
If long-pressing icons or text on your Oppo feels either too twitchy or too sluggish, the touch-and-hold timing is likely set wrong for your habits. This delay controls how long you need to press before the system registers a touch and hold instead of a normal tap.
Turn Call Vibration On or Off
Every incoming call makes your Oppo phone buzz, even when you already picked a ringtone you like. If that vibration feels distracting, unnecessary at your desk, or drains the battery faster during calls, the toggle for it lives inside your sound settings, not in a separate ringtone menu.
Clear App Cache
If an Oppo app keeps loading outdated images, freezes, or your storage fills up faster than expected, a bloated app cache is often the reason. ColorOS stores temporary files like thumbnails and login data so apps open faster, but old or corrupted cache entries can trigger glitches or slow performance. Clearing the cache removes this leftover data without deleting your photos, documents, or app settings.
Add a Contact Photo
If your contact list on Oppo still shows plain initials instead of faces, calls and messages are harder to scan at a glance. This happens because no image has been linked to that contact yet in the Contacts app. Adding a photo works with an existing gallery picture or a new snapshot from the camera.
Forward a Message on Oppo
Retyping a text just to send it to someone else wastes time, especially when the message contains links or details you cannot easily reproduce. Oppo phones let you forward an SMS straight from the conversation, and you can also send it to a different app instead of another contact.
Turn On/Off Select to Speak
When Select to Speak is active, an extra accessibility icon shows up in the navigation bar, and tapping it lets you highlight any text on screen to have it read aloud. It works similar to TalkBack but does not take over your phone's regular touch controls. If that icon suddenly appears or disappears without you doing anything, the setting may have been toggled by accident during a system update or a shared accessibility shortcut.
Edit Quick Decline Messages
When you reject an incoming call with a quick text, Oppo phones send one of four preset replies like 'Sorry, I can't answer the phone now.' These default lines rarely match how you'd actually respond to family, friends, or coworkers. Coloros lets you rewrite all four texts, but the setting sits inside the phone app rather than Messages.
Search for a Word in a Conversation
Scrolling through a long chat history just to find one message wastes minutes, especially in group chats with hundreds of texts. Oppo's Messages app has a search function that works inside a single conversation, not just across your whole inbox. Every match gets highlighted so you can jump straight to the message you need.
Turn Screen Rotation On or Off
If your Oppo screen refuses to switch to landscape when you turn the phone, or it flips around when you'd rather it stayed still, the Auto-rotate function is usually the cause. This setting depends on the built-in position sensor and can be changed either in the system settings or right from the quick settings panel. Some apps ignore this setting entirely and force their own orientation regardless of what you pick.
Turn Chat Features On or Off in Messages
If your Oppo phone still sends plain SMS instead of read receipts, typing indicators or media previews in Messages, Chat features are probably switched off. Some carriers activate this RCS-based mode automatically, others leave it for you to enable manually. Turning it off again can also fix message delivery problems on certain networks.