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Anatoly Terentyev
Anatoly Terentyev

Oppo Reno 5G CPH1921 Firmware Details and Flashing Procedure



Official Oppo Reno 5G edition CPH1921 Stock Rom




Are you looking for a way to upgrade your Oppo Reno 5G edition CPH1921 device to a new system? Do you want to fix some issues or problems on your device? Do you want to restore your device to its original state? If yes, then you are in the right place. In this article, we will show you how to download and install stock ROM on your Oppo Reno 5G edition CPH1921 device using QFIL tool.




Official Oppo Reno 5G edition CPH1921 Stock Rom



Oppo Reno 5G edition CPH1921 is a flagship smartphone from Oppo that was launched in May 2019. It features a 6.6-inch AMOLED display with a resolution of 1080 x 2340 pixels. It is powered by a Qualcomm Snapdragon 855 processor with 8 GB of RAM and 256 GB of internal storage. It has a triple rear camera setup with a 48 MP main sensor, a 13 MP telephoto lens, and an 8 MP ultrawide lens. It also has a motorized pop-up selfie camera with a 16 MP sensor. It runs on Android 9.0 Pie with ColorOS 6 skin on top. It supports dual SIM cards, NFC, Bluetooth 5.0, Wi-Fi 802.11 a/b/g/n/ac, GPS, and USB Type-C port. It has a fingerprint sensor under the display and a face unlock feature. It has a non-removable Li-Po 4065 mAh battery that supports fast charging.


Stock ROM is the official firmware that comes pre-installed on your device by the manufacturer. It is also known as stock firmware or stock software. It contains all the necessary files and settings that are required for your device to function properly. It also provides security patches and bug fixes for your device. Advantages of Stock ROM




There are many reasons why you might want to download and install stock ROM on your Oppo Reno 5G edition CPH1921 device. Some of the advantages of stock ROM are:


  • Unbrick your device: If your device is bricked or stuck in a boot loop, you can use stock ROM to flash your device and bring it back to life. Stock ROM can also help you to fix any software issue that might cause your device to malfunction.



  • Fix or repair IMEI: IMEI (International Mobile Equipment Identity) is a unique number that identifies your device. Sometimes, due to flashing custom ROMs or rooting your device, you might lose or corrupt your IMEI. This can cause problems with your network connectivity or SIM card recognition. Stock ROM can help you to restore or repair your IMEI and make your device work properly.



  • Remove malware or adware: Malware or adware are malicious programs that can infect your device and compromise your privacy and security. They can also slow down your device performance and consume your battery and data. Stock ROM can help you to remove any malware or adware that might be present on your device and protect it from future attacks.



  • Fix Bluetooth and WiFi issues: Bluetooth and WiFi are essential features that allow you to connect your device with other devices and networks. Sometimes, due to software glitches or compatibility issues, you might face problems with your Bluetooth and WiFi connectivity. Stock ROM can help you to fix these issues and improve your connection quality and speed.



  • Unroot or bypass FRP lock: Rooting your device can give you more control and customization options, but it can also void your warranty and expose your device to security risks. FRP (Factory Reset Protection) is a feature that prevents unauthorized access to your device after a factory reset. Sometimes, you might forget your Google account credentials or get locked out of your device due to FRP. Stock ROM can help you to unroot or bypass FRP lock on your device and restore it to its original state.



  • Restore your device to factory state: If you want to sell or give away your device, or if you just want to start fresh, you can use stock ROM to restore your device to its factory state. This will erase all your personal data and settings and make your device as good as new.



Firmware Details




Before you proceed to download and install stock ROM on your Oppo Reno 5G edition CPH1921 device, you need to know some details about the firmware that you are going to use. Here are the firmware details for different versions of Android:


Android Version


File Name


File Size


File Type


How To Flash


Android 9.0 Pie


Oppo_Reno_5G_CPH1921_EX_11_A.07_190507_QFIL.zip


6.3 GB


.zip


Extract the zip file and flash using QFIL tool


Android 10


Oppo_Reno_5G_CPH1921_EX_11_C.26_200507_QFIL.zip


6.4 GB


.zip


Extract the zip file and flash using QFIL tool


Android 10 (ColorOS 7)


Oppo_Reno_5G_CPH1921_EX_11_F.01_201119_QFIL.zip


6.8 GB


.zip


Extract the zip file and flash using QFIL tool


How to Download Oppo Reno 5G CPH1921 Stock ROM Firmware (Flash File)




Now that you know the firmware details, you can proceed to download the stock ROM firmware for your Oppo Reno 5G CPH1921 device. You can use the links below to download the firmware files for different versions of Android. Make sure you download the correct file for your device model and Android version. You can also check the file name, file size, file type, and how to flash instructions for each link.


  • Android 9.0 Pie: Oppo_Reno_5G_CPH1921_EX_11_A.07_190507_QFIL.zip (6.3 GB)



  • Android 10: Oppo_Reno_5G_CPH1921_EX_11_C.26_200507_QFIL.zip (6.4 GB)



  • Android 10 (ColorOS 7): Oppo_Reno_5G_CPH1921_EX_11_F.01_201119_QFIL.zip (6.8 GB)



After downloading the firmware file, you need to extract it to a folder on your computer. You will need a tool like WinRAR or 7-Zip to extract the zip file. You will get a folder with several files inside, including the QFIL tool and the flash file.


How to Install Stock ROM on Oppo Reno 5G CPH1921 using QFIL Tool




Once you have extracted the firmware folder, you are ready to install stock ROM on your Oppo Reno 5G CPH1921 device using QFIL tool. QFIL (Qualcomm Flash Image Loader) is a tool that allows you to flash stock firmware on Qualcomm devices. Before you start the installation process, you need to follow some pre-requisites:


  • Backup your data: Installing stock ROM will erase all your data and settings on your device, so make sure you backup your important data before proceeding. You can use a tool like Google Drive or Dropbox to backup your data online, or use a USB cable or an SD card to transfer your data to your computer or another device.



  • Charge your battery: Make sure your device has at least 50% battery level before installing stock ROM, as the process can take some time and consume some power. If your device runs out of battery during the installation process, it can cause serious damage to your device.



  • Install USB drivers: You need to install the USB drivers for your device on your computer, so that your computer can recognize your device and communicate with it. You can download the USB drivers for Oppo Reno 5G CPH1921 from here.



  • Enable USB debugging: You need to enable USB debugging mode on your device, so that you can connect it to your computer and flash stock ROM using QFIL tool. To enable USB debugging mode, go to Settings > About Phone > Tap on Build Number 7 times > Go back to Settings > Developer Options > Enable USB Debugging.



After following the pre-requisites, you can start the installation process by following these steps:


  • Launch QFIL tool: Go to the firmware folder that you extracted earlier and open the QFIL tool folder. Double click on the QFIL.exe file to launch the QFIL tool on your computer.



  • Connect your device: Turn off your device and connect it to your computer using a USB cable. Press and hold Volume Up + Volume Down buttons together for a few seconds until you see a Qualcomm HS-USB QDLoader 9008 port in the QFIL tool.



  • Select firmware files: In the QFIL tool, click on Browse button and locate the firmware file that you want to flash on your device. It should be in .mbn format and have a name like prog_emmc_firehose_xxxx.mbn. Then click on Load XML button and select rawprogram0.xml and patch0.xml files from the same folder.



  • Start flashing: After selecting the firmware files, click on Download button in the QFIL tool to start flashing stock ROM on your device. Wait for some time until you see a green Download Success message in the QFIL tool.



  • Reboot your device: Once the flashing process is completed, disconnect your device from your computer and turn it on. You should see the Oppo logo and then the setup screen. Follow the on-screen instructions to set up your device and enjoy the new stock ROM.



Conclusion




In this article, we have shown you how to download and install stock ROM on your Oppo Reno 5G edition CPH1921 device using QFIL tool. We have also explained the advantages of stock ROM and the firmware details for different versions of Android. Installing stock ROM can help you to unbrick your device, fix or repair IMEI, remove malware or adware, fix Bluetooth and WiFi issues, unroot or bypass FRP lock, and restore your device to factory state. However, you should also be careful and follow the pre-requisites and the steps carefully, as any mistake can cause damage to your device. You should also backup your data before installing stock ROM, as it will erase all your data and settings on your device.


We hope you found this article helpful and informative. If you have any questions or feedback, please feel free to leave a comment below. We would love to hear from you and help you out.


FAQs




Here are some frequently asked questions and answers related to the topic of this article:


  • Q: What is the difference between stock ROM and custom ROM?



  • A: Stock ROM is the official firmware that comes pre-installed on your device by the manufacturer. Custom ROM is a modified firmware that is developed by third-party developers or users. Custom ROM can offer more features and customization options than stock ROM, but it can also be unstable, buggy, or incompatible with your device.



  • Q: How can I check the Android version and model number of my device?



  • A: You can check the Android version and model number of your device by going to Settings > About Phone. You will see the information such as Android version, build number, model number, baseband version, kernel version, etc.



  • Q: How can I backup my data before installing stock ROM?



  • A: You can backup your data before installing stock ROM by using a tool like Google Drive or Dropbox to backup your data online, or using a USB cable or an SD card to transfer your data to your computer or another device. You can also use a backup app like Titanium Backup or Helium Backup to backup your apps and app data.



  • Q: How can I update my device to the latest Android version after installing stock ROM?



  • A: You can update your device to the latest Android version after installing stock ROM by going to Settings > System > System Update. You will see if there is any update available for your device. You can download and install the update by following the on-screen instructions.



  • Q: How can I root my device after installing stock ROM?



  • A: You can root your device after installing stock ROM by using a tool like Magisk or SuperSU. However, rooting your device can void your warranty and expose your device to security risks. You should only root your device if you know what you are doing and at your own risk.



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