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Fix OPPO Phone Call Issues: Can't Make or Receive Calls

Applicable products： Smartphones System version： ColorOS 14 and above，ColorOS 15.X，ColorOS 15 and above，ColorOS 15，ColorOS 13，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

Phone call issues can sometimes be because of the signal reception of both sides. It is better to check your OPPO phone's signal strength before making or receiving a call. The signal strength in an area could be better if you have two (2) or fewer bars. For other troubleshooting steps, read on! Note: Check your phone's ColorOS version in [Settings] > [About Phone] / [About Device]. Can't make or receive calls The first thing to do is check if both parties are in good signal reception places and refrain from taking or receiving a call underground, in crowded places, in the elevator, or the parking lot. When the network signal is of sufficient strength (with 3 or 4 bars), please check the network settings. 1. Turn on and off the Airplane mode or restart your OPPO phone. To turn on and off the Airplane mode: Swipe down the Control Center from your home screen and tap [Airplane Mode] icon. If you can't see the Airplane mode icon on your Control Center, see How to Rearrange Control Center Icons. Alternatively, go to [Settings] and toggle [Airplane mode] to turn on/off. Or go to [Settings] > [Connection & Sharing] and toggle [Airplane mode] to turn on/off. To restart the phone: Press and hold the Power and Volume Up button for at least 8 seconds or until you see the OPPO logo. 2. Remove and re-insert the SIM card. Use the ejector tool that comes inside the box of your OPPO phone to remove the SIM card. 3. Clear data/cache for the Phone app. For ColorOS 12 to ColorOS 15 and above: Go to [Settings] > [Apps] > [App management] > [Phone] > [Storage usage] and tap [Clear data]. For ColorOS 7.0 to ColorOS 11.3: Go to [Settings] > [App management] > [App list] > [Phone] > [Storage usage] and tap [Clear data]. 4. Check Call Settings (Call barring, Call forwarding, Fixed Dialing Numbers, Blacklist, etc.). For Google's Phone app : Go to [Phone ] > tap the [three-dotted line] at the top right, and tap [Settings] > [Calling accounts] > [Operator-related settings]. For OPPO's Phone app with ColorOS 6.0 and above: Go to [Phone ] > tap the *[three-dotted line] or [two-dotted line] icon at the top right, and tap [Settings] > [Carrier call settings]. Note: *The icons may differ per OPPO phone model but still the same path. Please refer to the actual product. 5. Make sure to check the network signal strength. If the signal in the area is poor (2 or fewer bars), try to make or receive calls in another location with a better signal. 6. Check your SIM card on the settings. You may need to check the SIM card inserted on your phone if it is enabled. Go to [Settings] > [Mobile Network] / [SIM card & mobile data] / [Dual SIM & Mobile Network] / [SIM & Mobile Network], then tap a SIM card to check if it's enabled. 7. Reset APN (Access Point Names) settings. Resetting the APN Settings essentially forces the device to re-read the information from the mobile network and your SIM card. For ColorOS 7 to ColorOS 13 and above: Go to [Settings] > [Mobile Network] / [Dual SIM & Cellular Network] / [SIM card & mobile data] / [SIM and Mobile Network] > tap a SIM card > [Access point names] and at the top right, tap the [two-dotted] / [three-dotted] icon > [Reset access points] and tap [Reset access points] again to confirm. 8. Make sure the phone's software is up to date. Check software update by going to [Settings] > [Software Updates] / [System Updates] / [About Device]. 9. Perform reset system settings. Reset system settings will not erase any of your phone data. It will only reset the settings of your phone. 10. Cross-check with other SIMs. If the SIM card is working on other devices except on the OPPO phone, backup data and perform a factory data reset. 11. Contact your operator Check with your operator if your SIM card is still active and make sure that the operator's network and communications services are not in a busy state and have no temporary network failures and outages in your area to push through with your call. 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 phones, but these won't affect the description in this article.

Get Widget With It on OPPO Phone

Applicable products： Smartphones System version： All system versions

Get Widget With It on OPPO Phone Today, let's talk about Widgets. Widgets are applications that can be performed in just one tap. Say Music Widget, or one that can be viewed immediately on the home screen, like the Calendar widget. Learn more about it below! How to Enable Widgets Simple. Pinch it! Pinch the screen using your fingers, tap [Widget] and choose an app and move it by dragging around your home screen. However, not all applications have widgets. Those on the list are the ones available. Widgets have different sizes. If you choose a widget and get a prompt saying "No more space on this page", just pan to the left or right and find an empty home screen to put your widget. Related articles: How to Find and Add Widgets on OPPO Phone How to Add World Clock Widget on OPPO Home Screen * Pictures, settings, and paths might differ from those of your phone, but these won't affect the description in this article.

How to Change the Theme of My Google Contacts in OPPO Phone

Applicable products： Smartphones System version： No system version involved

Changing the theme of Google Contacts on OPPO phones can help reduce eye strain while using it, whether it's day or night. You can easily change it by following the steps below. Keep reading to find out how! Note: The availability of Google Communication Suite features varies per country/ region. Change the theme in Google Contacts On your phone, go to the [Google] folder and open the [Contacts] app > [Profile] > [Contacts settings]. Under Display, tap [Theme] and choose your preferred theme, from [Light] or [Dark] or the system's default. * Pictures, settings, and paths might differ from those of your phone, but these won't affect the description of this article.

How to Check Call Recordings on OPPO Phones

Applicable products： Smartphones System version： ColorOS 15 and above，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 6.1，ColorOS 6.0，ColorOS 5.2

There are multiple reasons why you may want to record a call, such as for training purposes, to take notes from the call recording, or to have it for your personal use. ColorOS has a convenient feature that allows you to automatically record incoming and outgoing calls without installing a third-party application. Follow the article below to learn how to check recorded calls on your OPPO phone. Note: Available for ColorOS 5.2 and above. Check your phone's ColorOS version in [Settings] > [About Phone] / [About Device]. Please be reminded that the call recording feature varies per country/ region. The call recording feature may not be available in Australia and some European countries (Spain, France, Netherlands, Italy, Portugal, Belgium, New Zealand, and Russia). How to Check Call Recording Check the following steps below to know how you can check the call recordings on your OPPO smartphone: For OPPO phones with Google Phone Newer OPPO phones are powered by Google Communication Suite, which comes with Google Phone as the default dialer application. You can also record calls on these OPPO phones. Please note that call recordings are saved on your phone and cannot be backed up or saved to cloud storage. Open the [Phone] app. Find the phone number on which the call is recorded. You can also tap [Recents] and select the recorded phone number. For the most recent call: Tap the phone number then tap [] to play the recording. For previous call recordings of a phone number: Tap the phone number > tap [History], then select the recording from the list of calls and tap [Listen to a recording] to play the call recording. You can also share the call recordings with other devices. Simply tap [] and select the sharing app. * To know more about the Google Phone app's Call Recording Feature, see more here. For OPPO phones with an OPPO dialer For ColorOS 6 to ColorOS 12 and above: Open the [Phone] app from the home screen or app drawer, then tap *[] icon on the upper right corner of your screen > [Settings] > [Call Recording] and tap [View Call Recordings] to get the list of recorded calls. Alternatively, you can open the [Recorder] app from the home screen or from the app drawer menu and then tap [Calls] to get the list of call recordings. Note: *The icons may differ per OPPO phone model but still the same path. Please refer to the actual product. Call recording missing after software update If you're having an issue locating your recorded calls after updating to ColorOS 12, go to the [Recording] / [Recorder] app. Tap on [All recordings]. Select [Call recordings]. Note: Please note that when using the Google Phone application's Call Recording feature, you cannot record a call that is in progress until it has been answered. Additionally, you cannot record a call that is on hold, muted, or part of a conference call. Related articles: Call Recording Function Unavailable After ColorOS Update OPPO Phone: Google Communication Suite With Call Recording * Pictures, settings, and paths might differ from those of your phone, but that does not affect the description in this article.

How to Get OPPO Network Unlock Code

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.X，ColorOS 11.3，ColorOS 11.2，ColorOS 11.1，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

If you purchased a network-locked OPPO phone from your local network carrier, you may need the SIM card from where you bought it to unlock your OPPO phone. If not, follow the instructions below to discover how to unlock your OPPO phone. Read on! Note: Check your phone's ColorOS version in [Settings] > [About Phone] / [About Device]. Please note that the terms Network Lock and Region Lock are the same and can be used interchangeably. Network Lock for OPPO Phone Below are some scenarios you might want to learn about if your OPPO phone is prompting a network lock. You can also follow the path to troubleshoot it. What is Carrier Lock Carrier lock means your SIM card is locked with the local Mobile Operators (MO). Scenario: If you are in a Postpaid Plan with Mobile Operators (MOs), your phone is locked with them, and you are unable to use a SIM Card from other MOs, it depends on whether the device can still be used after the Postpaid contract is over. Kindly contact your Mobile Operators (MO) for more details. What is a Network Lock Network lock or Regional lock means your phone is locked in the region where you bought it. Scenario: You bought a phone from another country through an official channel and unboxed it when you went to that country. You now want to use it and get a prompt saying, “Network lock.” No need to worry. It is a security mechanism wherein you should insert a local SIM card from the country of purchase to activate the device before bringing/sending it to a different country. What is Other Lock Another lock means you are unable to use a device that is bought from another region, as it needs to comply with and be approved by the rules governing that region. Scenario: You bought a device from another region, and you are unable to use it when you arrive in another region. You have to check the local rules and guidelines of this region, as this will be followed first and foremost. And the Service Center is unable to help unlock the network, as one region’s rule shall always prevail. If you purchased the phone and are unaware of the Network lock: 1. You may visit the nearest OPPO Service Center in your area and have it unlocked. Do bring along with you the following: The phone that shows the error message Proof of purchase Warranty card Note: You need to bring and show a copy of the proof of purchase to the OPPO Service Center since it is needed to validate the phone. 2. An active SIM card from the country where you purchased the OPPO device can unlock the network. Make sure to have the SIM inserted for more than an hour to activate your phone. 3. You will only experience a Network lock once. Note: The 16-digit network unlock code should be provided by your service provider. 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. In case there’s no OPPO Service Center in the country where you are located, kindly contact our Customer Support to help you unlock the device. Related articles: What to Do if My OPPO Phone or SIM Card is PUK Locked How to Network Unlock Your OPPO Phone * Pictures, settings, and paths might differ from those of your phone, but these won't affect the description in this article. Moreover, all pictures shown are for illustration purposes ONLY. The actual product may vary due to product enhancement.

Mobile Data Network is 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 We know that feeling of being disconnected from the world- not being able to check the news, instant messaging, social media feeds, emails, and more. So, if you want to stay connected, kindly do the following if you are unable to use the mobile data network of your phone: 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. If you can't see the Airplane Mode icon in the Control Center, see How to Rearrange Control Center Icons. Through Settings: For ColorOS 11 to ColorOS 13 and above: 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: Why Can't Some Applications Access Mobile Data? How to Check the Mobile Data Usage of Your OPPO Phone * Pictures, settings, and paths might differ from those of your phone, but that does not affect the description in this article.

How to Turn Off Call Forwarding in Your OPPO Phone?

Applicable products： Smartphones System version： No system version involved

You wanted the call forwarding option disabled. We have the easy step-by-step guide here. Applicable to: All OPPO Smartphones. 1. Open [Phone] and tap three dots at the top. 2. Tap [Calling accounts] > [Operator-related settings] > [Call Forwarding]. 3. Tap [Always Forward] > [Off]. On some device, you can follow this path: *On some devices, you can follow this path: Open [Phone] and tap at the top＞Tap [Carrier Call Settings] > [Call Forwarding]＞Tap [Always Forward] > [Off]. * Pictures, settings, and paths might differ from those of your phone, but these won't affect the description in this article.

Always have your phone updated

Applicable products： Smartphones System version： No system version involved

Do we need the software updated? The answer is Yes. Because it can optimise the system performance, prolong battery life, develop compatibility, and enhance system stability. But, how to update the software? OTA update OTA (over-the-air) update is the wireless delivery of new software or data to mobile devices. If a new software version is detected by your phone, there will be a pop-up notification. With Wi-Fi connected or Mobile Data turned on, by only one click, it will automatically get updated. *Settings path: [Settings] > [System & updates] > [Software Updates]

How to Fix No Network or Poor Signal on OPPO Phones

Is your Android phone not receiving any service or experiencing a poor signal? Several factors may be causing this issue, including your location, signal quality from your network provider, or specific phone accessories that could be restricting the signal. Keep reading to find out why this might be happening to your OPPO phone! Note: Check your phone's ColorOS version in [Settings] > [About Phone] / [About Device]. Troubleshoot Poor Phone Signal or No Service Follow the steps below to troubleshoot the issue on your Android phone. Note: When your phone shows "No Service" or "Searching," you cannot make or receive phone calls or use a mobile data network connection. However, the Wi-Fi network will be available. Check your location Make sure you are in an area within the operator's network coverage. If you are traveling abroad make sure you have shopped roaming plans and enable mobile data and roaming on your Android phone. Remove your phone case It is recommended to remove any third-party protective case from your phone as it may block the signal reception. Check phone settings Check SIM card: Go to [Settings] > [Mobile Network] / [SIM card & mobile data] / [Dual SIM and mobile network] / [Dual SIM & Cellular] and tap a SIM card and check if your SIM card is enabled. Check the Preferred network type: To avoid the selected network type isn't being covered locally, go to [Settings] > [Mobile Network] / [SIM card & mobile data] / [Dual SIM and mobile network] / [Dual SIM & Cellular] and tap a SIM card, then tap [Preferred network type] and change to [4G/3G/2G (Auto)]. Disconnect VPN: If there is a VPN connection, disconnect it. See How to Delete a VPN on OPPO Phones. Reset Access points: For ColorOS 7.0 and above: Go to [Settings] > [Mobile Network] / [SIM card & mobile data]/ [Dual SIM and mobile network] / [Dual SIM & Cellular] > tap the SIM card > [Access point names] > tap the *[two-dots] / [three-dotted] icon on the top right, then tap [Reset Access Points]. For ColorOS 6.1 and below: Go to [Settings] > [SIM and Mobile Network] / [Dual SIM & Mobile Network] > tap the SIM card > [Access Point Name] and tap . Reinsert the SIM card Take out the SIM card using the ejector tool that comes in the box, check for damage, clean the chip and put it back in, or try another SIM card on your phone to see if you fixed the issue. Note: If the SIM card is damaged, your phone will fail to receive networks and communication signals. You may need to get a new SIM card from your network provider. If you cannot connect to a 4G network on your phone, check if your SIM card supports that first. Update the software version Go to [Settings] > [System update] / [Software update] / [About Device] and check if there's an available update then update to the latest software version. 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: Understanding Mobile Phone Signal Strength on OPPO Devices * Pictures, settings, and paths might differ from those of your phone, but that does not affect the description in this article.

Understanding 5G Advanced Technology

Applicable products： Smartphones System version： No system version involved

With the ever-evolving technology of smartphones, the need for stronger and more reliable signal strength increases. Introducing 5G-Advanced (5G-A)—taking connectivity to a new level. This revolutionary technology is set to bring enhanced connectivity, faster speed and lower latency, ensuring everything works more seamlessly than ever. Discover how it works and elevate your mobile connectivity like never before. What Is 5G-Advanced 5.5G, also referred to as 5G-A or 5G-Advanced, is an improved version of 5G. This technology's purpose is to utilize frequency radio waves to transmit signals, with the goal of enhancing mobile internet speed beyond the existing 5G networks. Compared with 5G networks, 5G-Advanced delivers top-notch performance in terms of speed, latency, connection capacity, and energy consumption, boasting the potential for theoretical network speeds to increase by 2 to 3 times based on the current network and chip technologies. Note: Currently, 5.5G (5G-A) base stations are still limited in number. To experience the 5G-A services, the availability of the operator's base stations is essential. It is advisable to check with your local operator for details on coverage and activation status. FAQs about 5G-Advanced 1. What are the requirements for a mobile phone to use 5.5G and display 5GA In order to access 5.5G, the following conditions must be fulfilled: The mobile phone must have compatible hardware. The mobile service provider must support the insertion of the mobile phone card. The mobile operators' base stations must provide network coverage in the regions where the phone is being used. 2. Conditions for the phone to display the 5GA icon In addition to meeting the previously mentioned requirements above, the phone's system must be updated to ColorOS 15 or above. 3. How to check if my current network is using 5.5G The signal icon at the top of the status bar indicates that 5.5G is being utilized. Other articles you might be interested in: Understanding Mobile Phone Signal Strength on OPPO Devices How to Fix No Network or Poor Signal on OPPO Phones How to Fix 5G Network Issues on My OPPO Phone

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