Swap Navigation Button Order
On a OnePlus phone using the classic navigation bar, the Back button always sits on the left and Recent Apps on the right. If your muscle memory expects the mirrored layout, or you switched from a phone with the opposite order, you keep tapping the wrong key. A single 'Swap buttons' toggle controls this order, but it hides inside the buttons and gestures settings.
Screen Wake for Notifications
If your OnePlus screen stays completely black when a WhatsApp message or other notification arrives, you have to unlock the phone just to check who messaged you. This happens because the Ambient display option for new notifications is switched off by default on many devices.
Change the Ringtone
If every call sounds the same on your OnePlus, you are probably still using the default system tone. Dual SIM users run into a different problem: both SIM cards ring identically, so there is no way to tell which line is calling. OxygenOS lets you assign a separate ringtone to each SIM, but the option sits a few taps deep in the sound settings, not in the SIM manager.
Disable Developer Options
Once developer options are enabled on a OnePlus phone, the toggle keeps showing up in Settings long after you finished debugging or side-loading an app. Leaving it active means USB debugging and other advanced switches stay exposed, which some apps flag as a security risk. Turning the whole menu off again only takes one tap once you know which switch controls it.
Install an App from the Google Play Store
Not sure whether the app you found online is safe to install on your OnePlus, or why the Install button in a store listing sometimes stays greyed out? The Google Play Store is the built-in source for messengers, games and system tools, but search results, region locks or missing sign-in can get in the way of a straightforward install.
Turn Off Instant Power Button Lock
If you tap the power button on your OnePlus even for a second, the screen locks right away and asks for your PIN, pattern or fingerprint again. That gets annoying when you only wanted to check the time or accidentally bumped the button. A setting inside the lock screen options controls whether the power button locks the phone instantly or with a short delay.
Change Alarm Sound
If your OnePlus alarm keeps playing the same default tone even after you picked something else while creating it, a separate setting inside the Clock app controls the sound instead. This override also decides whether your own mp3 files or custom ringtones show up as alarm options at all.
Enable or Disable the Suggestion Strip
When typing a WhatsApp message or email on your OnePlus, Gboard normally shows a row of word suggestions above the keyboard based on what you have already typed. If that row is missing, cluttered, or keeps popping up when you do not want it, the Show suggestion strip option is likely set the wrong way. This affects how fast you can type and how much of the screen the keyboard takes up.
Dial Pad Tones: Enable or Disable
Every digit you tap on the OnePlus dial pad triggers a short tone, and that beep stays audible even with the ringer on silent. If you find the sound distracting in meetings or public places, the dial pad tone comes from a separate toggle that has nothing to do with your ringtone or notification sounds.
Set a Mobile Data Limit
If mobile data keeps running past what you planned to use, your OnePlus phone can cut it off automatically. This relies on a feature called Automatic Disconnection of Network Connections combined with a data limit you define yourself. Once usage hits that value, mobile data switches off and stays off until the next billing cycle starts.
Set a Custom Notification Sound
Every SMS or Messenger alert on your OnePlus still plays the same stock tone, even after you scroll through the built-in sound list twice. OxygenOS does support your own audio files as notification sounds, but the option to load a custom file sits one menu deeper than the regular tone picker. Until that file is placed correctly on your phone, the system keeps falling back to the default ringtone.
Set Up a VPN Connection
If your OnePlus phone connects to public Wi-Fi or you need to reach a company network from outside the office, an unprotected connection leaves your traffic open to snooping. A VPN profile encrypts that traffic and can route it through a server in another region, but only works once the correct server details are entered on the device. Without those details, the connection fails or falls back to your regular network.
Enable or Disable Call Barring
If you are traveling abroad with your OnePlus and want to avoid unexpected roaming charges, call barring lets you block specific call types before they even connect. You can restrict outgoing calls, incoming calls, or international calls depending on which option you activate. Without the right setting enabled, calls still go through as usual and charges keep piling up.
SMS Delivery Reports: Enable or Disable
When you send a text message, you often have no way of knowing whether it actually landed on the recipient's phone. On OnePlus phones, a hidden setting can request a delivery report from your carrier for every SMS you send. If that option is turned off, or you are not sure which SIM it applies to on a dual SIM device, you will keep sending messages blind.
Set App Time Limits
If a game or social app keeps eating more of your day than you planned, screen time alone will not fix that. OnePlus phones running OxygenOS include an app timer inside Digital Wellbeing that locks an app once its daily allowance runs out. Without setting a limit, the app stays fully accessible no matter how long you use it.
Pairing Messages for Web with a PC
If you want to reply to texts without picking up your phone every time, pairing Messages with a browser tab on your PC solves that. The catch is that the phone still has to handle every message in the background, so the web session depends entirely on a working connection between the two devices. Many users get stuck at the QR code step because they open the wrong menu or use a browser that blocks the scanner.
Enable or Disable Auto-Sync for Personal Data
Contacts, calendar entries and app data can update automatically the moment you change them online or on another device. If Auto-sync personal data is switched off, those changes stop reaching your OnePlus phone until you sync manually or turn the option back on.
Enable or Disable Lift to Wake
If your OnePlus screen keeps lighting up every time you pick up the phone or just shift it in your hand, the motion sensor behind 'Pick up your phone to show' is reacting too eagerly. That constant wake-up drains battery faster and can expose your lock screen notifications at moments you did not intend. The setting is meant to save you a tap when checking the time, but it often triggers from pocket movement or when passing the phone between hands.
Enable or Disable Accessibility Menu
If the Accessibility Menu button is missing from your navigation bar, shortcuts for Assistant, power control, volume and recent apps are not available in the enlarged panel. The feature depends on a separate permission toggle, so switching it once in the wrong place leaves it off. Turning it back on restores the larger on-screen controls for anyone who relies on simplified navigation.
Reset App Preferences
If several apps on your OnePlus suddenly stay silent, open the wrong default app, or get stuck with a permission you blocked weeks ago, tracking down the exact toggle takes forever. Usually a mix of disabled apps, blocked notifications, stuck default app choices, and background data limits piles up over time. A single system reset clears that whole layer without deleting any app data.
Fullscreen app display settings
When an app opens with black bars on top and bottom instead of filling the whole screen, OxygenOS has not whitelisted it for fullscreen display. This usually happens with less common or older apps that were never updated for taller aspect ratios. A quick toggle in the display settings fixes the layout without needing an app update.
Set a Lock Screen Password
If your OnePlus phone has no lock screen password set, anyone who picks it up can open contacts, messages, photos and apps without restriction. OxygenOS offers Pattern, PIN and Password as unlock methods, but many users skip this step during setup or after a reset. Without an active lock method, private data and payment apps stay exposed the moment someone else grabs the device.
Stopwatch: Start, Pause and Lap Timer
Trying to time a workout or a recipe on your OnePlus phone but the stopwatch buttons seem to do nothing when you tap them? The Clock app bundles a stopwatch with lap timing, but Start, Lap, Pause and Reset only respond in a fixed order. Tap them out of sequence and the stopwatch either freezes on the current time or the lap list stays empty.
Turn Do Not Disturb On or Off
Calls keep ringing through even though you switched on silent mode, or notifications stay muted long after you meant to turn them back on. On OnePlus phones, Do Not Disturb handles sounds, vibrations and call rejection separately from the regular ringer switch, so toggling one does not always affect the other. Knowing where this setting actually lives in Oxygenos prevents missed alerts or unwanted interruptions.