Edit Quick Responses in the Phone App
Rejecting a call with a text reply on your OnePlus phone often sends a generic message like 'I will call you back later' that does not fit the situation. The Phone app stores a fixed set of quick responses that rarely match how you actually communicate. Until you edit them, every caller you decline gets the same default text.
Rename SIM Card
When both SIM slots run cards from the same mobile carrier, the phone shows an identical label for each and calls or data usage become hard to tell apart. OxygenOS displays this carrier name by default instead of a custom label. Renaming each SIM card fixes the mix-up without needing to swap slots or restart the phone.
Delete Access Point Name (APN)
A wrong or outdated APN entry on your OnePlus phone can block mobile data or MMS even though your SIM card works fine elsewhere. This often happens after switching providers, since the old carrier's APN stays saved and OxygenOS keeps using it by default. Removing the leftover entry clears the conflict without touching your other network settings.
Change Web Text Size in the Browser App
Web pages in the browser app on your OnePlus phone always start out at 100 percent text size, which can feel too small on long articles or awkward after you have pinch-zoomed once. A dedicated slider lets you push scaling up to 200 percent, but some pages with fixed layouts ignore it completely. If text stays the same size no matter how far you move the slider, one specific toggle is almost always the reason.
Enable or Disable Nearby Places in the Phone App
If the OnePlus Phone app keeps mixing local businesses and points of interest into your contact search, the Nearby places feature is switched on. This function relies on constant access to your device location to suggest places you can call directly, which some users find distracting or a battery drain. Turning it off keeps the dialer limited to your saved contacts only.
Add a New Home Screen Page
When every app and folder sits crammed onto one home screen, finding a single icon turns into a scroll-and-squint exercise. OnePlus phones let you spread apps across separate pages instead of piling everything onto one screen. This helps when you want a dedicated page just for messaging apps, games, or work tools.
Enable or Disable Speak Passwords in TalkBack
If TalkBack reads your password out loud while you type it on your OnePlus, anyone standing nearby can hear it, from a bus seat to a shared office. This happens because the Speak passwords option makes TalkBack announce each character as confirmation for people who cannot see the screen. Depending on where and how you use your phone, you may want this feature active or completely switched off.
Show or Hide Calendar Week Number
When you book a meeting or deadline, you often need the calendar week number, and the OnePlus Calendar app does not show it by default. That forces you to count weeks manually every time you check a date. The Show week number setting controls whether week numbers appear next to the days in your calendar view.
Disable TalkBack
If TalkBack turns every tap into a double-tap and swipes now switch between items instead of scrolling, the accessibility service is still running in the background. Reaching the toggle to stop it feels different from a regular settings visit, since TalkBack itself changes how you interact with menus while it is active.
Set Date Manually
If your OnePlus phone keeps resetting the date to the network value, the automatic time sync is still active in the background. This function pulls the date directly from your carrier and overwrites any manual change you make. You need to disable it before a custom date will actually stick.
Change Media Volume for Apps, Games and Videos
If Netflix, YouTube or a game suddenly blast out sound while your ringtone stays quiet, you are running into OnePlus's separate media volume control. This slider governs all in-app audio, including games, streaming apps and even played WhatsApp voice messages, independent from calls and notifications. Turning up the wrong slider in Quick Settings often leaves the actual media level untouched.
Make a Phone Call with the Phone App
If your OnePlus phone keeps asking which SIM card to call from every time you dial, or a call quietly goes out through the wrong number, the Phone app's Dual SIM handling is usually behind it. This mostly affects setups with two active SIM cards where no default line has been set for calls. Knowing where that selection lives saves you from mixed-up bills and missed callbacks.
Restore Archived Conversations in Messages
If a chat you need is missing from the main screen of the Messages app, it is likely sitting in the Archived folder instead of being deleted. Archiving hides a conversation from the start page without removing any messages, which often confuses users who think the thread is gone for good. You can still open and read an archived chat directly, but it will not show new message alerts on the home screen until you bring it back.
Power Button for Quick SOS
If your OnePlus suddenly dials the emergency number after you press the power button several times in a row, the quick SOS option in Security & Privacy is active. This shortcut is meant to speed up emergency calls, but it can trigger by accident in a pocket or bag. Knowing where this setting lives helps you switch between three or five presses, or turn it off completely.
Add a Keyboard Language
Typing in a second language on your OnePlus often triggers wrong autocorrect suggestions or an unfamiliar keyboard layout. This happens because Gboard only shows suggestions and characters for languages you have explicitly activated. Adding the missing language keyboard fixes both issues at once.
Archive Conversations in Messages
If your OnePlus inbox keeps filling up with chats you want to keep but don't need to see every day, archiving is the cleaner alternative to deleting. Archived conversations disappear from the main list but stay stored with every message and attachment intact. You can bring any of them back the moment you need the history again.
Set Dark or Light Theme for the Messages App
If the Messages app on your OnePlus phone still opens in a bright white layout at night, the built-in theme option is likely set to Light or System default instead of Dark. This app-level 'Choose theme' setting works independently from your phone's overall system theme, so changing one does not automatically change the other. Left on the wrong setting, this means unnecessary eye strain in dark rooms and slightly higher battery drain on an AMOLED screen.
Restore Deleted Photos and Videos
When a photo or video disappears from your OnePlus Gallery, it usually is not gone for good right away. Oxygen OS moves deleted media into a Recently deleted folder first, and only clears it out automatically after a set number of days. If that window has already closed, the file is permanently removed and no longer recoverable through the Gallery app.
Pocket Mode: Enable or Disable
If your OnePlus phone keeps launching apps, dialing numbers, or waking the screen while it sits in your pocket, the built-in touch protection might be switched off. Pocket mode is meant to lock the display and fingerprint scanner whenever the phone detects it's stowed away, but the toggle can slip back to its default state after an update or reset. Here's what controls the behavior and how to check the current setting.
Change the Start of the Week in the Calendar App
If your OnePlus Calendar always opens with Sunday as the first column, the app is likely following the week-start rule tied to your phone's region setting. That gets confusing when you travel for work and your team's calendar starts on Monday instead. Oxygenos lets you override this default and pick Saturday, Sunday or Monday as the start of the week.
Enable or Disable Mono Audio
If music or videos suddenly play through only one speaker with both channels squeezed together, Mono audio is likely active on your OnePlus. This accessibility setting merges the stereo channels so left and right output the identical signal. It helps with hearing loss in one ear, but it also removes stereo separation from calls, games and media playback.
Restart the Phone
If your OnePlus phone feels sluggish, apps stall in the background, or a fresh update refuses to finish installing, a restart usually clears the mess. Cache buildup and stuck background processes are the most common triggers. A quick restart resets these without touching your data.
Show or Hide Holidays in the Calendar App
If your OnePlus calendar shows a public holiday on almost every day, actual appointments get pushed down and easy to miss. This happens because the calendar app displays regional and national holidays by default, on top of every synced account. The more accounts you have connected, the more crowded the day view becomes.
Set Dwell Timing for Mouse Click
If you connect a USB or Bluetooth mouse to your OnePlus phone, an automatic click can trigger as soon as the pointer stops moving. Depending on the delay you have set, this click may fire too quickly or take far too long, making menus feel unresponsive or overly sensitive. Dwell timing controls exactly how long the cursor has to stay still before that click happens.