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 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.
Enable or Disable USB Tethering
If your laptop or PC shows no internet connection after plugging in the USB cable, USB tethering on your OnePlus is probably still switched off or fighting with another active connection. Some OxygenOS versions also pop up a prompt asking which network connection to share, and picking the wrong one leaves the computer offline. This is different from a broken cable or driver issue, since the phone controls the tethering toggle itself.
Enable or Disable Location Data in Photos and Videos
If your photos and videos do not show where they were taken in the gallery app, the camera is not tagging them with location data. This can happen after a system update or a fresh camera app install, when location tagging quietly resets to off. Turning geotagging back on lets you see the exact spot of every shot later, which is useful for travel photos or documenting a job site.
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A wrong or outdated APN entry on your OnePlus phone can block mobile data or MMS even though your SIM card works fine elsewhere.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.
Add WiFi Network Manually
If your OnePlus phone does not show a WiFi network in the scan list, the router is usually broadcasting a hidden or non-visible SSID. Without the network name in the list, you cannot tap it and connect the usual way. Adding the network manually lets you connect once you have the exact SSID and password from the router.
Restrict App Downloads to Wi-Fi Only
If the Play Store keeps pulling large app updates through your mobile data plan, your monthly data cap can vanish fast. On OnePlus phones, an app download preference inside the Play Store settings decides whether downloads run over Wi-Fi, mobile data, or both. Once mobile data is excluded, new installs and updates simply wait until you connect to Wi-Fi.
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.
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.
Forget a Wi-Fi Network on OnePlus
If a OnePlus phone keeps connecting to a Wi-Fi network with no internet or repeatedly drops the connection, the stored network profile is often the cause. An outdated password or a corrupted saved entry can block a fresh connection attempt. Removing the saved network forces the phone to treat it as new the next time you connect.
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.
Show Date and Location of Photos and Videos
Wondering exactly when a shot was taken or where you were standing at the time? OnePlus stores that data inside the file itself, but the Gallery thumbnail never shows it. Location tags only appear if geotagging was active in the camera app when the photo or video was captured.
Manage App Location Permissions
If an app keeps asking for your position or drains battery in the background, it likely still has broad location access on your OnePlus phone. OxygenOS lets you set that access per app, but the three permission levels are easy to mix up if you only skim the settings once. Getting this wrong either breaks features like maps or leaves GPS running when you never actually use the app.
Auto-Disconnect from Network at Data Limit
If mobile data suddenly stops working right after you cross your monthly allowance on a OnePlus phone, a built-in limiter is likely the cause, not a network outage. This goes beyond the usual data warning: OxygenOS can automatically kill every cellular data connection once the billing cycle limit is reached. Wi-Fi stays untouched, so calls and browsing over a home or office network keep running.
Rename a Paired Bluetooth Device
If you pair several Bluetooth devices with your OnePlus phone, the connection list quickly becomes confusing. Some earbuds, trackers or car kits only show up with a generic model code or their MAC address instead of a proper name. That makes it hard to tell which entry belongs to which device when you want to connect or disconnect something fast.
Set Up a Proxy Server
If your OnePlus phone seems to have no proxy option at all, you are looking in the wrong place. The setting only shows up once you open the properties of a Wi-Fi network you are already connected to. Without a valid proxy host name and port, the connection will simply fail to save.
Enable or Disable Wi-Fi
If Wi-Fi on your OnePlus phone keeps dropping, reconnecting slowly, or refuses to join a network at all, switching the radio off and back on often clears the stuck state. This matters most before downloading larger files, apps, or updates, since a shaky Wi-Fi connection can stall or fail those transfers. Knowing exactly where the toggle sits also helps when you want to force the phone onto mobile data instead.
Enable or Disable Google Location Accuracy
If your OnePlus phone's GPS position drifts, jumps around, or takes ages to lock on, Google's location accuracy setting is usually involved. This feature blends Wi-Fi, cellular network and sensor data with raw GPS to sharpen your position on maps and in apps. Turning it off trades some precision for less data sharing, which is worth knowing before you flip the switch.
Enable or Disable Smart Answer for Bluetooth
If your OnePlus phone keeps ringing on your Bluetooth headset instead of picking up calls on its own, the Smart Answer for Bluetooth feature is probably switched off. Some car kits and speaker systems only work smoothly when a call connects automatically, without you tapping a button. A wired headset or a different earphone mode can also leave this setting in the wrong state.
Bluetooth Contact Sharing On or Off
When you pair your OnePlus with a car radio or a laptop, that device often asks to read your saved contacts so it can show caller names or start calls by voice. If that request pops up every time you reconnect, or you want to stop a specific device from reading your address book, the setting sits per paired device rather than as one global switch.
Wi-Fi and Bluetooth Scanning for Location Accuracy
Even with Wi-Fi and Bluetooth switched off, your OnePlus phone keeps searching for nearby networks and devices to sharpen its location fix. Apps and background services can use these scans to track your position more precisely than GPS alone allows. If you want your toggles to actually stop the radios from scanning, a separate location setting needs to be turned off first.
Enable or Disable Simple Characters in Messages
Sending a text with accented letters, emoji, or other special symbols on your OnePlus can suddenly split it into two or three messages instead of fitting the usual 160 characters. This happens because the Messages app quietly swaps non-standard characters for simple ones to protect the SMS limit, which can either save you a segment or strip characters you actually wanted to send.