Select Network Manually
Traveling abroad often means your OnePlus phone locks onto a foreign carrier with weak signal instead of a stronger one nearby. The automatic network search behind this behavior does not always pick the best available operator. Turning off automatic selection lets you choose a specific network yourself.
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.
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.
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.
Control App Data Usage
If YouTube or Netflix keeps burning through your mobile data plan even when you did not mean to stream over cellular, a background permission is usually the cause. OxygenOS lets you set a data policy for every single app, but most people never open that screen. Without a manual override, apps default to using whatever connection is available, including your mobile data.
Enable Face Unlock
If your OnePlus phone only unlocks with a fingerprint or by entering a pattern, PIN, or password, Face Unlock stays inactive until you register your face separately. Without this step, the front camera has no biometric data to compare against when you pick up the phone. Setting it up once lets the lock screen recognize you automatically instead of asking for a code every time.
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 Up Private DNS
Every website you open on your OnePlus phone starts with a DNS lookup, and by default that request travels unencrypted across your network. Anyone sharing your Wi-Fi or your mobile carrier can see, log, or even redirect which domains you visit. Private DNS closes that gap by routing the entire lookup through an encrypted connection.
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.
Auto-Download of MMS Files via Mobile Data
When you are away from a Wi-Fi network, incoming picture or video messages on your OnePlus can quietly pull data through your mobile plan. Without a size cap, a single large attachment can eat into your monthly allowance before you even open the message. The Messages app lets you set a download limit for exactly this situation.
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 Screen Cast
If your OnePlus phone won't show up when you try to mirror the display to a smart TV, monitor or Fire TV Stick, the Screen cast function is often switched off or blocked by a network mismatch. Wireless mirroring only works when both devices sit on the same Wi-Fi network, so a hidden toggle or a wrong network can quietly break the connection. Some OnePlus units also link this feature to a separate casting toggle, which adds another spot where it can get disabled.
Find a Keyword on a Website in the Browser
Scanning a long article on your OnePlus phone for one specific word can feel like searching for a needle in a haystack. The browser's built-in find function highlights every match in yellow, so you do not have to scroll through walls of text. Knowing where this tool hides in the menu saves real time.
Enable or Disable Glide Typing
Typing on a OnePlus keyboard can feel slow when every single letter needs its own tap. Glide typing lets you drag a finger across the keys to form whole words instead, but the toggle for this feature sits several menus deep and many users only find it by accident. Others want it switched off again because the swipe gesture keeps producing the wrong word.
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.
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.
Add a Contact Shortcut to the Home Screen
Digging through the Contacts app every time you want to reach the same person wastes time, especially if that contact is not one of your recent calls. On OnePlus phones, a home screen shortcut places that contact right next to your apps, one tap away. Here is what the Add to Home screen option actually does and when it is worth setting up.
Show or Hide the Specs Watermark in Photos
Photos from your OnePlus camera sometimes carry a small text stamp in the lower left corner naming the device model and camera technology. If you want a clean image without that branding, or you want it back for sharing, the toggle sits inside the camera app itself. Not knowing where to look often means people just live with photos they did not choose the look of.
Stop Battery Saver Turning Off After Charging
If Battery Saver on your OnePlus phone switches off by itself once charging passes roughly 90%, the „Turn off when fully charged“ option is behind it. That's inconvenient if you want power saving to stay active no matter how full the battery is.