Enable the Scientific Calculator Mode
The stock Calculator app on a OnePlus phone opens with only basic functions, which pushes many people to download a separate scientific calculator from the Play Store. The extra functions are actually built in, but they stay hidden unless you trigger the right gesture or rotate the phone.
Block Unidentified Callers Automatically
If your OnePlus keeps ringing for numbers with no caller ID or generic labels like Unknown, callers hiding behind a suppressed or unregistered number are getting through. This often includes robocalls or alleged competition and survey calls that never show a real number. A dedicated toggle in the Phone app can stop these calls before they reach you.
Enable or Disable Activity Controls
If your phone keeps suggesting apps or search results based on things you did days ago, Google is likely logging your Web & App Activity in the background. On OxygenOS this tracking sits inside the Privacy settings and stays on by default, which also means your browsing and app usage get stored to your Google Account. Turning it off stops new data collection, though it does not delete what was already logged.
Add Widgets to the Home Screen
If your OnePlus home screen only shows app icons and never picks up weather, calendar or messenger widgets, you are probably missing the widget picker, which sits behind a long-press gesture instead of a menu. Placing a widget in the wrong spot often makes it snap right back into the tray. Enough free space on the current page decides whether the drop actually works.
Enable Dark Mode via System Tone
Looking for a Dark Mode switch in your OnePlus settings and coming up empty? OxygenOS hides this option inside the system tone, which controls the overall color scheme of the interface instead of listing dark design as its own toggle. Until you find that setting, backgrounds, menus, and app drawers stay locked in the bright layout even at night.
Enable or Disable Mobile Data
If your OnePlus phone shows no internet connection outside of Wi-Fi range, mobile data is likely switched off. This cuts every data-based connection, including app updates, messaging services and browsing until you turn it back on. Even with mobile data enabled, missing or wrong APN settings can still block internet access.
Add Emergency Contacts for SOS
If your phone is set to send its location during an SOS alert but nobody ever receives it, no emergency contact has been saved yet. OnePlus only sends the automatic SOS text with your current location to people you have added to a dedicated emergency list beforehand. Without that list, the alert has no recipient at all.
Change Keyboard Theme (Gboard)
The default Gboard layout on OnePlus phones sticks to a flat gray look that gets boring fast. If your home screen has its own color scheme, that gray keyboard clashes every time you type. A different keyboard theme, plus the option to turn key borders on or off, brings the typing screen closer to your own style.
Schedule Do Not Disturb Mode
Turning Do Not Disturb on and off by hand every night or before every meeting gets old fast, and it is easy to forget switching it back off, leaving missed calls and messages piling up. On OnePlus phones, the Do Not Disturb schedule inside Sounds & vibration can handle that timing for you, based on either a fixed time window or calendar events. Multiple schedules can run at once, each with its own days and hours.
Enable or Disable Spam Protection in Messages
If the Messages app on your OnePlus keeps flagging normal texts as junk, or unwanted spam keeps slipping through unfiltered, the built-in spam protection setting is worth checking. This feature scans incoming messages and reports rough details to Google, without sending your phone number or the message content itself. You can switch it on or off depending on how much filtering you actually want.
Enable or Disable the Keyboard Number Row
If every digit forces a switch to the symbol keyboard, typing passwords or addresses on a OnePlus phone slows down fast. Gboard can add a dedicated number row along the top edge, but it takes up extra vertical space and some users prefer to turn it off again. Whether that row is active or hidden depends on a single Gboard preference.
Enable or Disable Share Location in the Browser App
If Chrome keeps popping up a location prompt every time you search for something nearby, or local search results suddenly disappear, the Share location setting in the browser app is behind it. This toggle controls whether any website can even ask for your GPS position, separate from the app-level location permissions you manage elsewhere on your OnePlus phone. Turning it off silences every future request, but it also breaks maps, delivery tracking, and store-locator pages that rely on your position.
Add apps to a home screen folder
A cluttered home screen with dozens of loose app icons makes it hard to find anything fast. On OnePlus phones, apps do not merge into folders automatically, so you have to drag them in manually or they just sit scattered across your screens.
Connect to a Wi-Fi Network
Your OnePlus phone only auto-connects to the Wi-Fi network you set up on day one. Moving to a new home, joining an office network or logging into a guest hotspot means finding and adding that network yourself, and a mistyped password is the most common reason the attempt fails.
Turn On Wi-Fi Automatically
If your OnePlus keeps ignoring a known Wi-Fi network after you leave Bluetooth or mobile data active, the automatic Wi-Fi feature might be switched off. This function is supposed to re-enable Wi-Fi on its own once you are back in range of a saved network with a strong signal. Some people want the opposite and switch it off to stop the phone waking Wi-Fi unexpectedly and draining battery.
Enable or Disable Auto-Punctuate for Double-Tap Spacebar
If double-tapping the spacebar drops in a period you did not want, or nothing happens at all when you try it, Gboard's automatic punctuation behavior is set differently than you expect. This shortcut is meant to speed up typing by turning two quick space taps into a period plus a space, but it can also mess with fast typists who just want two spaces. The setting lives inside the keyboard's own text correction options, not in the general system menu, which is why many OnePlus users never find it.
Enable or Disable Chat Features in Messages
If your OnePlus keeps showing typing indicators, read receipts or high-resolution photo sharing inside the stock Messages app, chat features are switched on and syncing over mobile data or Wi-Fi. Some users want this messenger-style behavior turned off because it reveals when a message was read or drains data in the background. Others find messages stuck on plain SMS because the toggle never got activated in the first place.
Pair a Bluetooth Device
If your OnePlus phone does not detect your headphones, speaker, or inEars, the accessory is often still in a locked pairing state or Bluetooth is switched off on the phone. Sometimes a short PIN prompt shows up during the connection and has to be confirmed on both sides before audio actually starts working.
Show or Hide Password Characters While Typing
On a OnePlus phone, each character you type into a password field flashes briefly before turning into an asterisk. That short preview lets anyone glancing at your screen catch a glimpse of your login details, which becomes a problem in public places or shared spaces.
Schedule Power On/Off
If your OnePlus phone keeps lighting up with notifications at night or drains its battery while you sleep, manually switching it off and back on every day gets old fast. The Scheduled power on/off feature lets the phone shut down and restart on its own at fixed times. Without it, you either leave the phone running all night or risk forgetting to turn it back on before your alarm.
Add another fingerprint
If your OnePlus phone only unlocks reliably with one specific finger, switching hands or holding the phone at an angle often causes failed scans at the lock screen. Oxygen OS lets you store several fingerprint IDs at once, not just the first one you registered during setup. That only helps once additional fingers are actually added and named so you can tell them apart later.
Turn Touch Vibration On or Off
If every tap, menu selection or navigation button on your OnePlus triggers a short buzz, that is the touch vibration feedback kicking in. Some people rely on that haptic confirmation, others find it distracting or draining on battery over time. Either way, the behavior is controlled by a single toggle you can flip whenever you want.
Change Preset Theme on Home and Lock Screen
If your OnePlus home screen and lock screen still look the way they did out of the box, the preset theme is the setting controlling color accents, brightness, and overall tone. Oxygen OS bundles three built-in styles - Vibrant tints, Illuminating light, and Nuanced dark - but the switch sits inside a settings area many users overlook. Picking the wrong one can also affect how icons and widgets read in daylight or at night.
Add a New Tab in Chrome
Switching between product pages on different shopping sites usually means losing the page you were just looking at. On OnePlus phones running the Chrome app, you don't have to close anything to compare prices or articles side by side. A quick tap opens a fresh tab while every other page stays loaded in the background.