Turn High Performance Mode On or Off
If your Oppo phone drains battery fast or feels hot during gaming, High Performance Mode might already be active in the background. This setting disables every energy-saving feature to push maximum speed, which trades battery life and temperature for smoother performance.
Turn Glide Typing On or Off
Typing every letter by hand feels unnecessary when Gboard can turn a single finger swipe across the keyboard into a full word. On some Oppo phones, Glide typing stays switched off by default, so swipe gestures do nothing and the keyboard falls back to individual key taps. Whether you want faster input or need to stop an accidental swipe trigger, the setting sits hidden inside the keyboard menu.
Custom Ringtone for a Contact
If your Oppo phone plays the same generic ringtone no matter who calls, you can't tell an important contact from a random number without looking at the screen. ColorOS lets you swap in a custom sound for individual contacts instead of relying on the default tone. This works with your own audio files, not just the built-in ringtone list, and it stays independent from Focus or Do Not Disturb rules.
Turn Off Notifications for a Single App
If one chatty app keeps flooding your lock screen while everything else stays quiet, a blanket notification toggle wont fix it. On ColorOS you can allow or block alerts per app instead of turning notifications off system-wide.
Add Members to a Contact Group
Creating a contact group on your Oppo phone does not lock the member list. If you forgot someone or need to add a person later, the group only updates once you open it again and confirm the new members through the add-contacts screen. Skipping that confirmation step leaves the group unchanged even though it looked like the contact was added.
Set Up Face Recognition Unlock
If Face unlock is missing from your Oppo lock screen options, it usually means no unlock password has been set yet. ColorOS requires a password or PIN as backup before it lets you register your face for the screen lock, app lock, or private safe. Without that step, the Add face option stays hidden or greyed out.
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.
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.
Set a Custom Notification Sound
If every notification on your Oppo plays the same generic chime, the built-in sound list is probably too limited for you. Sound settings on ColorOS include a Select from files option that scans your phone's storage for compatible audio automatically. That means you can assign your own MP3 as a notification tone instead of picking from the default set.
Enable High Contrast Text
Small system fonts on Oppo phones can be hard to read in bright light or for users with low vision. The 'High contrast text' option in Accessibility boosts contrast between letters and background without changing the actual font size. If the toggle stays hidden, it usually sits inside a submenu that is easy to overlook.
Add and Manage Words in the Personal Dictionary
If your Oppo keyboard keeps autocorrecting names, abbreviations, or technical terms you actually want it to remember, the built-in Personal dictionary is likely empty or missing those entries. ColorOS lets you store custom words and optional shortcuts so the keyboard suggests them instead of fighting you. This mainly affects people who type industry jargon, nicknames, or non-standard spellings regularly.
Enable App Lock
Anyone who picks up your unlocked Oppo phone can open banking apps, chats, or your gallery without another prompt. Coloros includes an app lock feature that adds a separate privacy password in front of individual apps, but it stays switched off until you activate it. Without this extra layer, sensitive data stays only one tap away.
Add a Wi-Fi Network Manually
If a Wi-Fi network does not show up in the list of available connections, you cannot just tap and connect like usual. This happens when a router hides its SSID broadcast or when the signal is weak enough that Android drops it from the scan results. To connect anyway, you need the exact network name and, if the router uses one, the correct password.
Set Data Usage Billing Cycle Start Date
If your Oppo phone always resets data usage tracking on the 1st of the month, but your carrier bills you on a different day, the numbers in your data usage stats never match your invoice. This mismatch comes from the mobile data limit settings, where the tracking start date is fixed by default. You can align it with your actual billing date instead.
Turn Location (GPS) On or Off
When Smart Lock or Find My Mobile suddenly stops working on your Oppo phone, the location service is often the reason. Many apps also keep asking for GPS access even though you thought you had turned it off completely. Location tracking on ColorOS can be controlled system-wide or per app, and mixing up the two settings causes most of the confusion.
Enable Auto Answer for Incoming Calls
If you rely on a Bluetooth headset while driving or working, missed calls because you could not reach the display in time are a common frustration on Oppo phones. Auto answer lets the phone pick up incoming calls on its own once a headset or headphones are connected. You can also set a short delay before the call gets accepted, so it does not pick up too abruptly.
Turn Usage & Diagnostics On or Off
If your Oppo phone keeps sending usage and diagnostic data to Google without a clear reason, the toggle for it sits deep inside the privacy menu and gets overlooked easily. This data includes device performance details, crash reports and app usage patterns, even though Oppo does not fully disclose everything that gets collected. Turning the option off stops the automatic sharing, but you also lose the small contribution to future Android stability fixes.
Turn Data Saving On or Off
If background apps on your Oppo phone suddenly stop syncing or notifications arrive late, Data Saving mode is likely blocking their mobile data access. Even apps you are actively using can load slower or skip previews and thumbnails while the mode is active. This setting sits inside the mobile data menu and is easy to miss when troubleshooting connectivity issues.
Rearrange Quick Settings Icons
If your Quick settings panel feels cluttered or the toggle you reach for most sits on a second screen, the icon order on your Oppo probably still matches the factory layout. ColorOS lets you add, remove and reorder these buttons, but the edit mode is easy to overlook since it hides behind a small pencil icon in the panel itself. Between eight and sixteen icons fit here depending on your model, and a messy order slows down quick access to Wi-Fi, flashlight or Bluetooth.
Turn On/Off Automatic Data Sync
If contacts, calendar entries or photos on your Oppo phone stop updating in the background, the account sync toggle has likely been switched off. This setting controls whether signed-in accounts like Google keep pushing changes to your device without you opening each app manually.
Turn Fingerprint Animation Sound On or Off
Every time you unlock your Oppo phone with your fingerprint, a short confirmation sound plays. In quiet rooms or during meetings this beep can get annoying fast, and some users prefer silent authentication without an audible cue.
Open Eyes Requirement for Face Unlock
If Face Unlock keeps rejecting you even though you are staring straight at the screen, the open eyes requirement in ColorOS is often the cause. This check forces the camera to confirm both eyes are visibly open before it accepts a match. Glasses, sleepy eyes, or bad lighting can make this stricter mode fail more often than usual.
Change Always-On Display Clock Style
If your Oppo phone only shows the time and battery percentage on the Always-On Display, you are missing part of what the feature can actually do. ColorOS also lets you show the date and incoming notifications, but the toggle sits a few taps deep in the display settings and gets overlooked easily.