Turn On/Off Wi-Fi and Bluetooth Scanning for Location Accuracy
If your Oppo phone shows your location several streets away, or apps take forever to pin you down in a city, the culprit is often disabled Wi-Fi and Bluetooth scanning. Coloros uses nearby networks and Bluetooth signals to fine-tune GPS, even when both radios are switched off. Without this scanning, location accuracy drops noticeably indoors and between tall buildings.
Set Up a VPN Connection
If your company or university hands you server details instead of a ready-made VPN app, your Oppo phone needs a manual profile entered directly in the system settings. Without the right protocol, server address and login data, the connection fails silently or drops right after you save it. This is different from installing a VPN app from the Play Store, which handles the setup on its own.
Format SD Card
If an Oppo phone keeps warning that a memory card is unreadable or unsupported, the card usually needs to be formatted before it works with photos, apps or music. Formatting is also the fastest way to wipe a used SD card clean before selling the device or reusing the card elsewhere. Every file on the card gets deleted permanently, so back up anything important first.
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.
Limit Connected Devices on Personal Hotspot
By default, an Oppo hotspot accepts up to ten devices at once, which slows down shared data or blocks a new phone or laptop from joining once that cap is reached. If your household needs fewer simultaneous connections for better speed, or more room for extra devices, the ten-device default is not fixed. You can raise or lower it directly in the hotspot settings.
Answer an Incoming Call
If a call pops up on your Oppo and tapping the screen does nothing, you are probably looking for the wrong gesture. Oppo phones show incoming calls as a full-screen alert rather than a simple tap-to-answer button, which confuses anyone switching from a different Android brand.
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.
Manage App Permissions
Oppo apps often ask for access to storage, location, or contacts right after installation, and the request rarely explains why the permission is needed. Granting everything by default can let apps read data they never use for their actual function. ColorOS lets you review and change each permission per app at any time, without reinstalling anything.
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.
Show or Hide Notification Icons in Status Bar
On Oppo phones, every app pushes its own icon into the status bar, which quickly turns the top of your screen into a cluttered icon row. If you only want to see how many unread notifications you have, or nothing at all, the icon display is controlled through a separate notification setting. This setting changes how icons appear, not whether you actually receive notifications.
Auto-Reconnect to a Wi-Fi Network
If your Oppo phone keeps hopping back onto a weak or blocked Wi-Fi network instead of switching to mobile data, the Automatically reconnect option is the reason. It is active by default for every saved network, which is convenient at home but annoying near a guest hotspot with a login page or poor signal. You can turn it off for one network only, without affecting the others.
Change App Icon Style
If every app icon on your Oppo still shows the same rounded-square outline, the built-in icon shape picker probably has not been touched yet. Coloros lets you switch all home screen icons at once between styles like standard, material, pebble, or a custom outline. The setting is easy to miss because it sits inside general appearance options rather than the home screen settings themselves.
Change Default Messaging App
If Messenger or another chat app keeps hijacking your text messages, Coloros still only lets one app act as the default SMS handler at a time. Several installed apps can request that role, which is why replies to notifications sometimes open the wrong client. Oppo controls this behavior through a single setting in the app management area, separate from the messaging apps themselves.
Turn Grid Lines On or Off in Camera
Framing a landscape shot without a horizon reference makes tilted photos easy to miss. On many Oppo phones the camera grid overlay is switched off by default, so there is no composition guide in the viewfinder until you turn it on. Photo and video mode also handle this setting separately, which causes confusion when the grid shows up in one mode but not the other.
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.
Auto-Connect to the Best Wi-Fi Network
If your Oppo phone keeps switching between two Wi-Fi networks you already trust, Wi-Fi Assistant is quietly picking whichever signal looks strongest. That can drop calls or interrupt downloads right when the switch happens. You can turn this automatic selection off if you prefer to pick your network yourself.
Hide Notification Content on Lock Screen
Anyone glancing at your locked Oppo phone can read message previews, sender names and app alerts right off the screen. If that exposes private chats or one-time codes to people nearby, the lock screen notification content needs adjusting, not just the app notification toggle. ColorOS treats show, hide sensitive parts and hide everything as three separate levels for exactly this reason.
Set Up a Proxy Server for Wi-Fi
If you want to browse without exposing the real IP address of your Oppo phone, a proxy server routes your traffic through a different address. Without one set up, every app and website still sees your actual connection details. A proxy only works once you are already connected to a Wi-Fi network.
Unarchive a Conversation in Messages
If a chat suddenly disappears from the Messages home screen on your Oppo phone, it usually was not deleted but moved to the archive. Archived conversations stay hidden until you pull them back manually, so incoming texts from that contact can go unnoticed. This mostly happens after swiping a chat away or tidying up the inbox.
Move Apps and Files to an SD Card
When internal storage on your Oppo phone runs low, photos, videos, and even some apps stay stuck on the device even though an SD card is installed. Coloros includes a built-in transfer tool, but it only works with certain file types and not every app is eligible for the move. Knowing which data can actually shift to the memory card helps you free up space without deleting anything you need.
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.
Set Recovery Email for Privacy Password
Locked out of your app lock or private safe because you forgot the privacy password? Without a recovery email saved in advance, Oppo gives you no way to reset it. Once an address is linked, the 'Forgot password' option lets you create a new privacy password.
Turn Off TalkBack (Accessibility)
If TalkBack is running on your Oppo phone, a single tap only selects an item and reads it aloud instead of opening it. Every action now needs a confirming second tap, which makes even switching TalkBack off feel out of reach. This select-then-confirm control catches most users off guard exactly when they try to disable the feature.
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.