Enable or Disable Wi-Fi Calling
When your carrier signal drops to one bar indoors, calls often cut out or fail to connect entirely. Wi-Fi calling routes voice calls through your wireless network instead, but it only works if your provider has switched on the feature for your SIM. If the toggle is missing or stays greyed out, that mismatch is usually the reason.
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.
Permission Manager: Control App Access
When an app suddenly asks for camera or location access again, or you are not sure which apps can read your contacts, the Permission Manager on your OnePlus gives a clear per-function overview. Instead of digging through each app individually, you pick a function like Camera or Location and see every app that currently has access to it. This makes it much faster to spot apps that have no real reason to hold a sensitive permission.
Delete Learned Words and Keyboard Data on OnePlus
If Gboard on your OnePlus keeps suggesting outdated typos, old contact names, or words you only typed once, the learned word dictionary has grown too large. This personal dictionary builds up over time and can start pushing irrelevant suggestions ahead of the words you actually want to type. Clearing it resets predictions without touching your installed keyboard or language settings.
Enable or Disable Pop-up on Keypress
Every tap on the on-screen keyboard shows a small popup with the letter you just pressed, and on some OnePlus phones this becomes distracting while typing fast in WhatsApp or email. The feature comes from Gboard's key preview setting, not from OxygenOS itself. You can turn it on or off anytime without touching autocorrect or other typing settings.
Silence Notifications From Individual Apps
Getting a sound alert for every single WhatsApp message, even when you only want a quiet reminder, gets annoying fast on a OnePlus phone. Muting an app or a specific notification category keeps the alert visible in the notification shade and on the lock screen, but removes the sound, vibration and pop-up banner. That is different from switching an app's notifications off completely, which hides them from you entirely.
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.
Enable Developer Options
If USB debugging, extra logging or other tweaks are missing from your OnePlus, the developer options are still hidden. Without them you cannot access advanced system tools like ADB access or performance overlays. OxygenOS keeps this menu hidden by default to protect casual users from unwanted changes.
Enable or Disable Color Inversion
When every color on your OnePlus screen suddenly looks reversed, like a photo negative, the Color inversion accessibility feature is usually the cause. This setting flips light and dark tones across the whole display, including photos, videos and app icons. It can be switched on by accident through a shortcut or left active after testing accessibility options.
Manage Game Space Settings
Install a game from the Play Store on a OnePlus phone and the icon never lands on your home screen - it only shows up inside the Game Space library. That trips up a lot of players who assume the install failed. Game Space also decides whether calls, notifications and screen taps get blocked while you play, so the wrong toggle can cost you a message or an incoming call mid-match.
Set a Custom Ringtone
If your OnePlus phone only offers preset tones for incoming calls, you cannot pick a personal mp3 track by default. Custom sounds only show up in the ringtone picker once the file sits in the right storage location, and Dual SIM setups add another layer if each SIM should ring with its own tone.
Banner Notifications for Apps
Missing an important alert, or getting a banner pop-up from an app that should stay quiet? On OnePlus phones, banner notifications only show while the screen is unlocked and depend on a per-category 'Pop on screen' setting that's easy to miss. If that toggle is off, the alert still lands in the notification panel, but it never appears as a banner at the top of the screen.
Set the Time Manually
If your OnePlus phone keeps snapping back to the wrong time or a different time zone, the network time sync is overriding whatever you type in. Oxygenos pulls this value directly from your carrier, so a manual change gets reverted within seconds unless that source is switched off first.
Change Time Zone and Region Manually
If your OnePlus phone shows the wrong time or date after traveling, the automatic time zone detection is likely still pulling data from your carrier network. This happens because the network-based time zone setting stays active by default, overriding any manual change you try to make. You need to turn that function off before you can pick your own region and time zone.
Change USB Connection Type
When you plug your OnePlus phone into a PC or laptop, it defaults to charging only and blocks file access. If Windows or macOS does not show the phone as a drive, or you need MIDI or PTP mode instead of MTP, the connection mode is set wrong on the phone side.
Enable or Disable the App Drawer
If every installed app sits directly on your OnePlus home screen, finding anything quickly gets messy fast. Swiping up on a free area does nothing when the app drawer is turned off, leaving all icons scattered across multiple screens instead of tucked away in one list. This setting controls whether OnePlus keeps app icons on the home screens or moves them into a separate drawer you reach with a swipe.
Add Emergency Information to Lock Screen
If your OnePlus gets lost or you have a medical emergency, first responders often need details fast but the phone stays locked. Without emergency information stored, allergies, blood type or emergency contacts stay invisible on the lock screen. OnePlus lets you display this data without unlocking the device.
Set Date and Time Automatically
If your OnePlus phone shows the wrong time after a flight, a SIM swap or a factory reset, the clock has usually stopped syncing with the carrier network. Normally the device pulls date and time from the provider on its own, so no manual input is required. This only breaks when the network sync option gets switched off or someone picked a fixed time zone by hand.
Rename a Fingerprint
Every fingerprint you register on your OnePlus phone gets a generic label like Finger 1 or Finger 2, so telling your own thumb apart from a partner's index finger later is pure guesswork. Once several prints are stored for unlocking or app logins, keeping track of who owns which slot gets confusing fast.
Power Button Ends Call Setting
Struggling to tap the on-screen End call button during an active call on your OnePlus? A hidden accessibility option lets you hang up with the power button instead, but it only works once the right setting is turned on. Leave it off and pressing the power button just locks the screen while the call keeps running.
Delete Photos and Videos
Storage filling up on your OnePlus usually comes down to old photos and videos nobody looks at anymore. Deleting them from the Gallery app does not remove them right away though, since OnePlus keeps a safety copy for a while before space is actually freed up.
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.
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.
Enable or Disable Call Waiting
If a second call comes in while you are already on a call with your OnePlus phone, call waiting decides whether you get notified at all. Without it enabled, incoming calls during an active conversation go straight to a busy signal or voicemail. Some users also find the alert tone during calls distracting and want to turn it off entirely.