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How to Delete Privacy Password on OPPO Phone

Applicable products： Smartphones System version： ColorOS 15 and above，ColorOS 14.X，ColorOS 14.1，ColorOS 13.1，ColorOS 12.X，ColorOS 12，ColorOS 11，ColorOS 7.1，ColorOS 6.1，ColorOS 6.0，ColorOS 5.1

Disabling or deleting your OPPO device's privacy password will result in the deactivation of the security features associated with both the Private Safe and App Lock. If you wish to proceed, you can easily manage it through the Settings path provided below. Note: Available for ColorOS 5.1 and above devices. Check your phone's ColorOS version in [Settings] > [About Phone] / [About Device]. How to Delete OPPO Privacy Password Below are the ways to delete the Privacy password per the ColorOS version on your OPPO phone. For ColorOS 14 to ColorOS 15 and above Go to [Settings] > [ Security & Privacy] >[More Security & Privacy] > [Privacy Password] then enter your privacy password and tap [Turn off password], then tap [Turn off] and enter your privacy password to confirm. For ColorOS 12 to ColorOS 13 : Go to [Settings] > [Password & Security] > [Privacy Password] then enter your privacy password and tap [Turn off password], then tap [Turn off] and enter your privacy password to confirm. For ColorOS 5.1 to ColorOS 11: Go to [Settings] > [Fingerprint, Face & Password] / [Password & Biometrics] > [Privacy Password] > enter the privacy password, then tap [Turn off password] and tap [Turn off], then enter your privacy password again to confirm. What to Do if I Can't Remember My Privacy Password There are two ways to recover the password to your Private Safe: Face or Fingerprint password: Unlock your Private Safe using these methods if you had set them beforehand. Security questions, Recovery email, or OPPO ID: Enter the answer to the security question you set, or enter the email address or reset using the password of your OPPO ID. Note: If the above methods were unsuccessful or not previously set up, resetting the Privacy password is unlikely. If you did not set up a security email or questions We understand how important the data you have saved is on the Private Safe/ File Safe, and not being able to access it can be frustrating, but for privacy concerns, we don't store personal/private data, like passwords. What to Do if No Recovery Method is Set If you forgot your password in Private Safe/ File Safe and did not set any recovery method like those mentioned above, you need to back up all your files and perform a factory data reset. Note: Performing a factory data reset will erase all your files in Private Safe/ File Safe. If the abovementioned steps do not fix your concern, prepare your warranty card and contact your nearest OPPO Customer Service. You can also contact OPPO Support so we can help and assist you further with your concern. Depending on your region, you may check if you need to book an appointment before visiting your local Service Center. * Pictures, settings, and paths might differ from those of your phone, but these won't affect the description in this article.

Why Is My OPPO Phone Not Detecting the SIM Card

Applicable products： Smartphones System version： ColorOS 15.X，ColorOS 15 and above，ColorOS 15，ColorOS 14.X，ColorOS 14.1，ColorOS 13.1，ColorOS 12.X，ColorOS 12，ColorOS 11，ColorOS 7.X，ColorOS 7.2，ColorOS 7.1，ColorOS 7，ColorOS 6.1，ColorOS 6.0，ColorOS 5.2，ColorOS 5.1，ColorOS 5.0，ColorOS 3.X，ColorOS 3.2，ColorOS 3.1，ColorOS 3.0

Are you constantly receiving a notification indicating "No SIM Card inserted," "Invalid SIM," or "SIM Card cannot be detected" on your OPPO device? There are several reasons for a SIM card not being detected or read, such as the incorrect position of the SIM, the SIM card slot malfunctioning or being damaged, the SIM card being disabled, or the phone's software being corrupted. To troubleshoot these issues, we provided some helpful guides below. Read on. Note: Check your phone's ColorOS versions in [Settings] > [About Phone] / [About Device]. Troubleshooting SIM Card Detection Issue on OPPO Phones Below are the troubleshooting steps you can follow if you're having trouble with the SIM card not detecting on your OPPO phone. Restart your phone Press and hold the Power and Volume Up button for at least 10 seconds or until you see the OPPO logo. Check the SIM card Turn off your phone by pressing the Power button and sliding or tapping [Power off] and take out the SIM tray using the ejector tool that comes with your OPPO phone. Check that the SIM card is properly inserted or look for signs of damage. Disable and enable SIM card. Go to [Settings] > [Dual SIM & Mobile Network] / [Dual SIM & Cellular] / [SIM & Mobile Network] / [SIM Card & Mobile Data] / [Mobile Network], tap the SIM and toggle on [Enable]. Try another SIM card (if you have one) on your Android phone. This should tell you whether the error is with the SIM card or the phone and SIM slot. If the SIM is not detectable on another phone, refer to your network provider. If the SIM is detected on another phone, continue the following troubleshooting steps or send your OPPO phone to the nearest service center for inspection. Factory data reset the phone If all the above steps have not fixed the problem, reset your OPPO phone to factory settings. Back up and transfer the data on your phone first, then reset your OPPO phone to its initial state and settings. For ColorOS 15: Go to [Settings] > [System & update] > [Back up & reset] > [Reset phone] and tap [Erase all data]. For ColorOS 13 to ColorOS 14: Go to [Settings] > [Additional settings] > [Back up and reset] > [Reset phone] and choose an option to erase all data. For ColorOS 12: Go to [Settings] > [System settings] > [Back up and reset] > [Reset phone] and tap [Erase all data] and choose an option to erase all data. For ColorOS 11: Go to [Settings] > [Additional settings] > [Back up and Reset] > [Erase all data (factory reset)] and choose an option available for factory reset. If the above steps do not resolve the issue, prepare your warranty card and contact your nearest OPPO Customer Service. You can also contact OPPO Support so we can help and assist you further with your concern. Depending on your region, you may check if you need to book an appointment before visiting your local Service Center. Related articles: What to Do If I Lost My SIM Card/SIM Card Broken How to Set Up Dual SIM on OPPO Phone * Pictures, settings, and paths might differ from those of your phone, but these won't affect the description in this article.

How to Back Up Files on OPPO Phone using Google Backup

Applicable products： Smartphones System version： ColorOS 15.X，ColorOS 15 and above，ColorOS 15，ColorOS 14.X，ColorOS 14.1，ColorOS 13.X，ColorOS 13.2，ColorOS 13，ColorOS 13.1 and above，ColorOS 13.1，ColorOS 12.X，ColorOS 12，ColorOS 11.X，ColorOS 11.1 and above，ColorOS 11.3，ColorOS 11.2，ColorOS 11.1，ColorOS 11，ColorOS 7.X，ColorOS 7.2，ColorOS 7.1，ColorOS 7，ColorOS 6.X，ColorOS 6.1.2，ColorOS 6.1，ColorOS 6.0.1，ColorOS 6.0，ColorOS 5.X，ColorOS 5.2.1，ColorOS 5.2，ColorOS 5.1，ColorOS 5.0

Backing up your files regularly is essential to protect your data and make device transitions smoother. OPPO smartphones running ColorOS 5.0 and above support Google Backup, allowing you to store important files such as app data, device settings, call history, and more directly to your Google account. This makes it easy to restore your data if your phone is lost, replaced, or reset. Note: A stable internet connection is required to perform Google backup. Why Use Google Backup Google Backup securely stores your data in Google Drive, making it accessible across Android devices linked to the same account. It is especially useful when: Switching to a new device Performing a factory reset Recovering from accidental data loss How to Enable Google Backup on OPPO Phones Follow the steps below to back up your phone data to your Google account: Open [Settings] on your OPPO phone. Tap [Google]. Select [Backup]. Toggle on [Back up to Google Drive]. Tap [Account] and select or add the Google account you want to use. Tap [Back up now] to start the backup process. This will back up supported data types including contacts, app data, call logs, device settings, and SMS (availability may vary depending on Android version). Backing Up Photos and Videos For media files, use Google Photos to back up and sync: Open the [Google Photos] app. Sign in with the same Google account. Tap your profile icon > [Photos settings] > [Backup]. Toggle on [Back up & sync]. Your photos and videos will automatically be uploaded to your Google Photos library. Notes: To check your ColorOS version: Go to [Settings] > [About Phone] / [About Device]. Google Backup settings may look slightly different depending on your software version, but the core steps remain the same. Make sure your device is connected to Wi-Fi or has a stable mobile data connection during the backup. Related articles: What are the Files that Can be Backed Up to Google Drive on OPPO Phone? How to Restore Files Stored in Google Drive to OPPO Phone? * Pictures, settings, and paths might differ from those of your phone, but these won't affect the description in this article.

Why Is My Mobile Data Not Working on OPPO Phone

Applicable products： Smartphones System version： ColorOS 15.X，ColorOS 15 and above，ColorOS 15，ColorOS 14.X，ColorOS 14.1，ColorOS 13，ColorOS 12.X，ColorOS 12，ColorOS 11，ColorOS 7.X，ColorOS 7.2，ColorOS 7.1，ColorOS 7，ColorOS 6.0，ColorOS 5.0，ColorOS 3.X，ColorOS 3.2，ColorOS 3.1，ColorOS 3.0

Using your OPPO phone's mobile data while you're out can be really convenient, especially when there's no Wi-Fi available. However, there are instances when the mobile data is not functioning properly due to the signal, your OPPO phone's settings, or other reasons. The troubleshooting guide below will help you resolve this problem. How to Troubleshoot Mobile Data Issues Losing access to mobile data can prevent you from using essential services such as messaging apps, email, web browsing, and social media. If your OPPO phone is unable to connect to the mobile data network, there are several steps you can follow to identify and resolve the issue. The guide below outlines practical troubleshooting methods to help restore your data connection. Check your phone's signal Check the signal icon on the status bar to see if your phone has weak, unstable, or has no signal. If you are in weak signal areas, change your location and try again. See How to Fix No Network or Poor Signal on OPPO Phones. Weak 2/3G network signal: Signal strength is at 0-2 bars. Weak 4G network signal: The up and down arrows of the "4G" icon do not light on. Turn on and off the Airplane Mode There are two ways to turn on/off the Airplane Mode. Control Center: Swipe down to see the Control Center, then tap the [Airplane Mode] icon. Through Settings: For ColorOS 14.1 to ColorOS 15 and above : Go to [Settings] > toggle the [Airplane mode] off. For ColorOS 11 to ColorOS 14 : Go to [Settings] > tap [Connection & sharing] > toggle the [Airplane mode] off. For ColorOS 7 and below: Go to [Settings] > toggle the [Airplane mode] off. Consult your mobile operator Check with your operator to make sure you have enough data under your account/SIM card. Check your SIM Card Take out the SIM card using the ejector tool that comes inside the box and put it back in, and see if the connection is successful. Try another SIM card on your phone. If your phone holds two SIM cards, go to [Settings] > [Dual SIM and mobile network] / [Mobile Network] / [Dual SIM & Cellular] / [Dual SIM & Cellular Network] / [SIM Card & Mobile Data], switch to the other SIM card, and try again. Check OPPO phone Settings If there is a VPN connection, disconnect it. Enable mobile data: Go to [Settings] > [Mobile Network] / [Dual SIM and mobile network] / [Dual SIM & Cellular] / [Dual SIM & Cellular Network] / [SIM Card & Mobile Data] > [Mobile data] and enable it. Or swipe down to see the Control Center and tap the [ Mobile data] icon. Turn off Wi-Fi Connection: Go to [Settings] > [Wi-Fi] and turn off Wi-Fi. Or swipe down to see the Control Center and tap the [ Wi-Fi] icon. Check the Preferred network type: Go to [Settings] > [Dual SIM and mobile network] / [Mobile Network] / [Dual SIM & Cellular] / [Dual SIM & Cellular Network] / [SIM Card & Mobile Data] > tap a SIM card > [Preferred Network Type], adjust the preferred network type to [4G/3G/2G (Auto)]. Reset Access Points: Go to [Settings] > [Dual SIM and mobile network] / [Dual SIM & Cellular] / [Dual SIM & Cellular Network] / [SIM Card & Mobile Data] > tap a SIM card you are using > [Access Point Name] and tap [Reset]. Note: Some models don't have this option and APN updates automatically with the network on. In some OPPO devices: Go to [Settings] > [Dual SIM and mobile network] / [Mobile Network] / [Dual SIM & Cellular] / [Dual SIM & Cellular Network] / [SIM Card & Mobile Data] and tap a SIM, then tap [Access Point Name] and at the upper right corner, tap the [two-dotted] icon and tap [Reset access points]. Change or reset carrier network settings Go to [Settings] > [Dual SIM and mobile network] / [Mobile Network] / [Dual SIM & Cellular] / [Dual SIM & Cellular Network] / [SIM Card & Mobile Data] > tap a SIM card > [Access Point Name], and switch to another one. If the problem persists, follow the steps above to reset the Access point name. Go to [Settings] > [Dual SIM and mobile network] / [Mobile Network] / [Dual SIM & Cellular] / [Dual SIM & Cellular Network] / [SIM Card & Mobile Data] > tap a SIM card > [Carrier], and turn on or tap [Choose automatically] or [Auto select]. Restart your phone Press and hold the Power and Volume Up buttons for at least 8 seconds or until you see the OPPO logo. Or press and hold the Power button and swipe to [Restart]. Check for a software update Go to [Settings] > [System updates] / [Software update] / [About device], detect, and update your phone to the latest software version. Reset your OPPO phone to factory settings Back up and transfer the data on your OPPO phone first. See How to Factory Reset an OPPO Phone. Note: Make sure to use your phone in an open area within operator network coverage. If you're traveling internationally, make sure that you have shopped for international roaming plans. Make sure your phone is not severely worn, aging, corroded, or accidentally damaged. If the abovementioned steps do not fix your concern, prepare your warranty card and contact your nearest OPPO Customer Service. You can also contact OPPO Support so we can help and assist you further with your concern. Depending on your region, you may check if you need to book an appointment before visiting your local Service Center. Related articles: What to Do If Mobile Data Is Slow on Your OPPO Phone * Pictures, settings, and paths might differ from those of your phone, but that does not affect the description in this article.

Why Is It Important to Update Your OPPO Phone

Applicable products： Smartphones System version： All system versions

Smartphone updates often appear as notifications, prompting users to install the latest version of their operating system. If you’ve ever wondered whether these updates are truly necessary, the short answer is: yes, it is recommended to keep your OPPO phone up to date. Software updates are not just about introducing new features, they also improve your device’s performance, stability, and security. Why Software Updates Matter Security Enhancements: With each update, OPPO includes patches to fix known security vulnerabilities. These updates protect your device from malware, unauthorized access, and other threats that may compromise your personal data. Bug Fixes: Updates resolve system glitches or bugs that may cause apps to crash, features to malfunction, or the phone to behave unexpectedly. These fixes ensure a smoother user experience. Performance Improvements: Software updates often include performance optimization. This can make your phone faster, more efficient in handling apps, and better at conserving battery life. New Features and Functionality: Updates may bring new tools or features to your phone, such as camera enhancements, gesture controls, or accessibility improvements. Staying updated ensures you’re not missing out on these additions. Optional Trial Updates OPPO sometimes rolls out trial or beta versions of upcoming updates for early feedback. If you’re not comfortable trying new or unstable features, you may skip trial updates and wait for the official version to be released. Related articles: How to Update OPPO Phone to the Latest Android Software Understanding Software Patch, Update, Upgrade How to Check if Your Phone Has the Latest Software Version

How to Enable OTG Functionality on OPPO Phones

Applicable products： Smartphones System version： All system versions

If you have files, photos, videos, or documents stored on a USB device and want to access them on your OPPO phone, you can use a feature called OTG (On-The-Go). OTG allows your phone to connect directly to USB storage devices, making it possible to view, copy, or move files without needing a computer. With a compatible OTG cable and your OPPO phone, you can easily transfer content into your preferred folders using the File Manager app. This guide explains how OTG works and how to use it safely to manage your files. Note: Check your phone's ColorOS version in [Settings] > [About Phone] / [About Device]. When not in use, the On-The-Go or OTG connection will turn off in 10 minutes. Not all OPPO phones have the OTG connection feature. This feature is based on your device's hardware. You may check directly on your OPPO device if your phone supports it. What is the OTG connection OTG or On-The-Go is a specification that allows USB devices, such as tablets or smartphones, to act as a host, allowing other USB devices, such as USB flash drives, digital cameras, microphones, computer mouse, or keyboards, to be attached to them. How to enable OTG connection For ColorOS 15 and above: Go to [Settings] > [Accessibility & convenience] > and toggle to enable the [OTG Connection]. For ColorOS 13 to ColorOS 14: Go to [Settings] > [Additional Settings] > and toggle to enable the [OTG Connection]. For ColorOS 12: Go to [Settings] > [System Settings] > and toggle to enable the [OTG connection]. For ColorOS 3.0 to ColorOS 11.3: Go to [Settings] > [Additional Settings] and toggle to enable the [OTG connection]. Transfer files using OTG Enable OTG Connection on your OPPO phone through the above path. If the OTG connection is grayed out, the OTG connection is already enabled. Insert a compatible OTG drive on your OPPO phone. After inserting the OTG, insert the USB flash drive into the OTG drive and allow the *permissions that appear on your screen. Tap [OTG]. You will see all the folders from your USB flash drive and then tap the file you wish to transfer. Tap and hold the file and tap [Copy] or [Move]. Then select a folder where you want to move the file. Tap [Phone storage] or to a folder where you want to move it, then tap a folder under it and tap [Move to here]. If an SD card is inserted into your phone, you may move the file to a folder on your SD card and tap [Move to here]. Note: You need to allow permissions for the first time inserting the OTG drive. Other articles you might be interested in: What are the USB port types for OPPO Phone chargers: A, B, C How to Enable USB Debugging on OPPO Phone * Pictures, settings, and paths might differ from those of your phones, but these won't affect the description in this article.

Why Won’t My OPPO Screen Turn Off During Calls

Applicable products： Smartphones System version： No system version involved

Modern smartphones, including OPPO devices, are equipped with a proximity sensor, a small, built-in component that detects how close the phone is to your face during a call. This feature helps prevent accidental screen touches and conserves battery by automatically turning off the display when the phone is held to your ear. However, if your screen doesn’t turn off during calls, it may indicate an issue with the sensor or related settings. This guide will explain how the proximity sensor works, why it’s important, and walk you through practical steps to check and troubleshoot the feature on your OPPO smartphone. Note: Check your ColorOS version through [Settings] > [About Phone] / [About Device]. What is a Proximity Sensor The proximity sensor is a small component located near the top of your OPPO smartphone screen. Its main function is to detect how close the phone is to your face or another object. During a phone call, the sensor automatically turns off the screen when it senses the phone is near your ear. This helps conserve battery life, prevent accidental screen touches, and reduce heat generation. However, there may be times when the proximity sensor does not function correctly, causing the screen to stay on during calls. If you’re experiencing this issue, follow the troubleshooting steps below to restore your device’s normal behavior. Where is the Proximity Sensor Located The proximity sensor is installed automatically on the top front of your phone next to the earpiece. However, sometimes, the proximity sensor may not work. This could be due to: Unsuitable/ incompatible phone cases. Improperly installed screen protectors. A hardware sensor failure or software failure. What to Do if the Proximity Sensor is Not Working Check if the problem is solved after each method before trying the next one. Remove the phone case and screen protector. Check if the phone casing and screen protector are blocking the sensor. Restart your OPPO phone, and make sure you have updated your phone to the latest software version. To restart your OPPO phone, press and hold the Power and Volume Up buttons for at least 8 seconds or until you see the OPPO logo. You can test and detect on your OPPO phone per the ColorOS version below. For ColorOS 13 and above: Go to [Phone Manager] > tap on the [Three-dotted icon] on the upper right corner of the screen > [Diagnostics] Select [Sensors] and disable other components. Tap [Run diagnostics] and follow the on-screen instructions to check if your sensors work properly. If detection results show an error or abnormality, contact the OPPO Support Team for assistance. For ColorOS 12: Go to [Phone Manager], tap [Tools] at the lower right, and tap [Diagnostics]. Then tap [Diagnostics] > and select [Sensors] and disable other components. Tap [Run diagnostics] and follow the on-screen instructions to check if your sensors work properly. If detection results show an error or abnormality, contact the OPPO Support Team for assistance. For ColorOS 11 to ColorOS 11.3: Go to [Phone Manager] > [Diagnostics] > [Continue]. Select [Sensors] and disable other components. Tap [Run diagnostics] and follow the on-screen instructions to check if your sensors work properly. If detection results show abnormal, contact the OPPO Support Team for assistance. Note: This option is only available for ColorOS 3.2 and above devices. If the abovementioned steps do not fix your concern, prepare your warranty card and contact your nearest OPPO Customer Service. You can also contact OPPO Support so we can help and assist you further with your concern. Depending on your region, you may check if you need to book an appointment before visiting your local Service Center. Note: Special technology is applied to conceal the proximity sensor in the upper front of OPPO's smartphone for the whole look of simplicity. It may cause an abnormality of proximity function if the film or protector covers the proximity sensor area. The proximity sensor is enabled by default. There is no way to enable or disable it. Related articles: My Phone Screen Does Not Turn On when Receiving Calls. What Should I Do? * Pictures, settings, and paths might differ from those of your phone, but it does not affect the description in this article.

How to Delete a VPN on OPPO Phones

Applicable products： Smartphones System version： No system version involved

Using a VPN or Virtual Private Network on your OPPO phone can help protect your privacy and secure your internet connection, especially when using public Wi-Fi. A VPN works by creating a private, encrypted connection between your device and the internet, making it harder for others to see your online activity or access your personal information. If you’re having trouble connecting to a VPN or notice that it disconnects frequently, there may be issues with your phone settings, the VPN app, or your network connection. This guide explains what a VPN is, why it might not work properly, and provides simple troubleshooting steps to help you reconnect safely. Remove a VPN on OPPO phone There may be situations where you want to remove a VPN from your OPPO smartphone. While VPNs help protect your privacy and secure your internet connection, they can sometimes interfere with app performance, slow down network speeds, or prevent access to region-specific content. In some cases, a VPN may remain active in the background even when it’s no longer needed. Perform the following steps to get rid of a VPN on your OPPO smartphone. Go to [Settings] > [Connection & sharing] / [Other Wireless Connection] > [VPN]. Locate the VPN you want to delete and tap on the right. Then tap [Delete] / [Remove] at the bottom of the screen. Related articles: Safeguard Yourself and Your Devices on Public Wi-Fi Wireless Technology and its Usability * Pictures, settings, and paths might differ from those of your phone, but these won't affect the description in this article.

Can't Receive Text or SMS Messages on OPPO Phone

Applicable products： Smartphones System version： ColorOS 15 and above，ColorOS 14.X，ColorOS 14.1，ColorOS 13.X，ColorOS 13.1 and above，ColorOS 13.1，ColorOS 12.X，ColorOS 12，ColorOS 11，ColorOS 7.X，ColorOS 7.2，ColorOS 7.1，ColorOS 7，ColorOS 6.1，ColorOS 6.0，ColorOS 5.2，ColorOS 5.1，ColorOS 5.0，ColorOS 3.X，ColorOS 3.2，ColorOS 3.1，ColorOS 3.0

Having trouble receiving SMS messages on your OPPO phone can interrupt communication and delay access to important information. This issue may be caused by signal problems, blocked contacts, SIM card errors, or messaging app settings. Understanding the potential causes can help you resolve the issue effectively. This guide outlines practical troubleshooting steps to help restore normal message reception on your device. Note: Check your phone's ColorOS version in [Settings] > [About Phone] / [About Device]. Resolve Unable to Receive SMS There could be a few reasons why you're having trouble receiving messages on your OPPO phone. To resolve this issue, follow the steps below. Step 1: Check for Spam and Blocked Numbers Priority should be given to confirming whether this part of the SMS or verification code has been intercepted by the phone. If it is a phone with ColorOS12 or above systems, you can refer to the following terms for confirmation: Go to your phone's [Messages] application > [Three-dotted icon] on the upper right corner of your phone's screen > [Block & filter]> tap on the [Three-dotted icon] on the upper right corner of your phone's screen > [Block & filter] and disable the feature. If you know someone is trying to send you messages, but you're not receiving those, check to see if the number is blocked. Step 2: Check and Confirm if the Phone is in 'Do Not Disturb' Mode If the 'Do Not Disturb' mode is enabled, it temporarily silences notifications, making it unable to receive SMS, calls or other alerts coming through. If all the above steps have been checked and the problem cannot be solved, it is highly likely that it is caused by the network/server side. You can follow these steps to troubleshoot: Step 3: Check the SIM Card Remove the SIM card and re-insert it using the ejector tool in the box. Try the SIM card on another device to check if the issue occurs. If you can receive messages on another device, continue the next troubleshooting steps on your OPPO phone. Step 4: Turn Airplane Mode on and off There are two ways you can turn on/off the Airplane mode. Control Center: From the top of the screen, swipe down to open the Control Center and then, tap the [ Airplane Mode] icon to turn it on and off. If you can't see the Airplane mode icon. Settings: Go to [Settings] > toggle [Airplane mode] to turn on/off. For ColorOS 11 to ColorOS 13 and above: Go to [Settings] > [Connection & Sharing] and toggle [Airplane mode] to turn on/off. If the abovementioned steps do not fix your concern, prepare your warranty card and contact your nearest OPPO Customer Service. You can also contact OPPO Support so we can help and assist you further with your concern. Depending on your region, you may check if you need to book an appointment before visiting your local Service Center. Related article: OPPO Smartphone's Messages from Unknown Sources Feature * Pictures, settings, and paths might differ from those of your phone, but these won't affect the description in this article.

How to Cool Phone Battery to Prevent Overheating?

Applicable products： Smartphones System version： No system version involved

It is normal for your phone to get warm when using or charging, but once the phone gets too warm, we should identify the root cause for phone overheating. Let's follow this guide to learn why and how to fix this. The phone gets hot while gaming Playing games and watching videos constantly runs the phone's processor, which can consume a lot of power and cause the phone to get warmer over time. Be sure to take regular breaks from long gaming. The phone gets hots when calling or using the Internet When the phone network signal is poor, the device will search for a better signal, which will consume battery heat up. It is recommended to make phone calls or use the Internet in an area with a strong signal. The phone gets hot during charging It is normal for the phone to get slightly warm during charging, However, if the phone gets extremely hot, stop charging immediately and let the phone cool down. If the phone keeps getting extremely hot again, it may indicate a malfunction. Contact OPPO Support Team or take your phone and adapter to a nearby OPPO Customer Service Center for assistance. The phone gets hot during standby or regular use Try the following tips if your phone gets hot even during normal usage. Remove phone case When you charge the battery or use the phone for too long of a time, the phone might get warm. Remove any case the phone may be in. Avoid direct sunlight to your phone Move your phone to a cooler location. Reduce the display brightness Dim the screen or turn on Auto-Brightness in [Settings] > [Display & Brightness]. Disable unneeded features Turn off wireless connections such as mobile data, Wi-Fi, Bluetooth, GPS, and other connection when not in use in [Settings]. Close background apps Tap the Multi-task or Recent Task key at the bottom of the screen and tap 'X' or [Clear] to close all background apps. Pause downloads Check if there are large files being downloaded. If yes, pause downloads until the phone cools down. Keep your phone away from other electronic devices Placing your phone on or next to a computer or multiple phones can easily overheat it. Update applications Keep your applications up-to-date. See How to Update Applications in Google Play Store? Disable background data sync Go to [Settings] > [Accounts and Sync] / [Users & Accounts] and turn off [Auto-Sync Data]. This will stop apps to synchronize with Google server or other servers automatically. Restart and update phone to the latest system version Go to [Settings] > [System Updates] or [Software Updates] to check and update your phone's software to the latest version. Factory reset the phone If the phone gets hot although you're not using it or it's not charging, perform a factory reset. Back up and transfer your data, then perform a factory data reset. Go to [Settings] > [Additional Settings] > [Backup and Reset] > [Reset to Factory Settings] > [Erase All Data]/[Erase All Content and Settings] and follow the onscreen instructions to restore your phone to its factory settings. Note: Factory data reset will completely WIPE all the data on your phone. Before erasing all data, always make an external backup of your device because once you wipe the device, data cannot be restored. * Pictures, settings, and paths might differ from those of your phone, but that does not affect the description in this article.

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