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OnePlus 8 Pro and 8T Downgrade to OxygenOS 11: A Step-by-Step Guide

OnePlus 8 Pro and 8T Downgrade to OxygenOS 11: A Step-by-Step Guide
downgrade oneplus 8 pro 8t to oxygenos 11 android 11

With Growing Android 12 Issues, Here's How to Downgrade Your OnePlus 8 Pro/8T to OxygenOS 11 on Android 11

As reported by several OnePlus 8 Pro and OnePlus 8T users, there have been numerous Android 12-related issues popping up that have caused frustration and inconvenience. These issues range from display problems to battery drain concerns. If you're among those experiencing hassles with Android 12 on your OnePlus device, there's an alternative path you can take: rolling back to OxygenOS 11 on Android 11.

If you're experiencing recurring issues with Android 12, battery woes, or other problems, downgrading to OxygenOS 11 might be your best course of action. It offers a stable and polished experience without the nagging issues present in Android 12.

To downgrade your OnePlus 8 Pro or OnePlus 8T to OxygenOS 11 on Android 11, you can follow a relatively simple process. First, ensure you have a complete backup of your data on your OnePlus device. Then, you'll need to download the relevant OxygenOS 11 firmware file for your specific device from the OnePlus forums. After that, you'll need to put your phone into recovery mode and use ADB and fastboot commands to initiate the downgrading process.

In summary, if you are facing challenges with Android 12 on your OnePlus 8 Pro or OnePlus 8T, there's a viable solution at your fingertips: downgrading to OxygenOS 11 on Android 11. By following the detailed procedure mentioned earlier, you can effectively restore your device to its previous, stable state.

How to Downgrade OnePlus 8 Pro/8T to OxygenOS 11 Android 11

OnePlus 8 Pro and 8T

Introduction

The OnePlus 8 Pro and 8T are two flagship smartphones from OnePlus that were released in 2020. They originally came with OxygenOS 11 based on Android 11 pre-installed. However, some users may encounter issues or prefer to revert to the previous version of OxygenOS 10 based on Android 10. In this guide, we'll provide the instructions to downgrade your OnePlus 8 Pro or 8T to OxygenOS 11 Android 11.

Prerequisites:

  • Before you begin, it's important to note that downgrading your device may void your warranty.
  • Make sure you have access to a computer with a stable internet connection.
  • Create a complete backup of your device's data to avoid any potential loss of information.
  • Ensure that your device has at least 50% battery life to prevent it from powering off during the process.
  • Download the necessary ADB and Fastboot files on your computer.
  • Enable USB debugging and OEM unlocking on your OnePlus device through Developer Options.

Instructions:

  1. Install ADB and Fastboot:
    • Download the ADB and Fastboot platform-tools for your operating system (Windows, Mac, or Linux).
    • Extract the downloaded zip file to a folder on your computer.
    • Add the extracted folder path to your system's PATH environment variable.
  2. Unlock the Bootloader:
    • Power off your OnePlus device completely.
    • Press and hold the Volume Down and Power buttons simultaneously until you see the OnePlus logo.
    • Select "Recovery Mode" using the Volume buttons and confirm with the Power button.
    • Once in Recovery Mode, choose "Advanced" and then "Unlock the Bootloader."
    • Confirm the unlocking process by selecting "Unlock the Bootloader" again.
  3. Download the OxygenOS 11 Firmware:
    • Visit the official OnePlus website and download the OxygenOS 11 firmware for your device.
    • Ensure that the firmware version is the one you want to downgrade to.
    • Rename the downloaded firmware file to "firmware.zip" and transfer it to the ADB and Fastboot folder on your computer.
  4. Enable USB Debugging and OEM Unlocking:
    • Go to "Settings" > "System" > "Developer Options".
    • If Developer Options is not visible, enable it by tapping "Build Number" multiple times.
    • Toggle on "USB Debugging" and "OEM Unlocking."
  5. Connect Your Device to the Computer:
    • Using a USB cable, connect your OnePlus device to your computer.
    • Ensure that the connection is stable and not interrupted during the process.
  6. Boot into Fastboot Mode:
    • Power off your OnePlus device completely.
    • Press and hold the Volume Down and Power buttons simultaneously until you see the Fastboot logo.
  7. Flash the OxygenOS 11 Firmware:
    • Open a command window or terminal on your computer.
    • Navigate to the ADB and Fastboot folder using the "cd" command (e.g., "cd C:\Platform-tools").
    • Run the following command to flash the OxygenOS 11 firmware: 
      fastboot flash system firmware.zip
    • Wait for the flashing process to complete. This may take a few minutes.
  8. Reboot Your Device:
    • Once the flashing process is finished, run the following command to reboot your device: 
      fastboot reboot
    • Your OnePlus device will now boot into OxygenOS 11 Android 11.

Conclusion

By following the steps mentioned in this guide, you can successfully downgrade your OnePlus 8 Pro or 8T from OxygenOS 12 to OxygenOS 11 based on Android 11. However, it's important to remember that downgrading may result in potential issues or bugs. Additionally, any subsequent updates or security patches released for OxygenOS 12 will not be available to you. Therefore, carefully consider the reasons for downgrading and ensure you understand the potential risks involved.

FAQs

  1. Can I downgrade my OnePlus 8 Pro/8T to OxygenOS 10?

No, this guide only provides instructions for downgrading to OxygenOS 11. Downgrading to OxygenOS 10 is not supported.

  1. Will downgrading void my OnePlus warranty?

Downgrading your device may void the manufacturer's warranty. It's recommended to check with OnePlus support to confirm their policy regarding downgrading.

  1. What if I encounter issues during or after the downgrading process?

If you face any problems, ensure that you have followed the instructions carefully. Additionally, you can consult OnePlus support or visit relevant forums for assistance.

  1. Can I upgrade back to OxygenOS 12 after downgrading?

Yes, you can upgrade back to OxygenOS 12 or any subsequent versions once they become available. However, you may need to wait for an official OTA update or manually flash the firmware using the instructions provided in this guide.

  1. Is it safe to downgrade my OnePlus device?

While downgrading is generally safe if followed correctly, there's always a potential risk of encountering issues. It's recommended to create a complete backup of your device's data before proceeding with the downgrading process.

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