Downgrade Oneplus 9 To Android - 11 Exclusive

By following this guide, you'll be able to downgrade your OnePlus 9 to Android 11 exclusively. However, we recommend you to proceed with caution and consider the risks and consequences before making any changes to your device.

Move the downloaded ZIP file to the of your phone’s internal storage. This means the file should not be inside any folder.

Click to begin the process. The system will now wipe your device and flash Android 11.

If prompted, clear the system update notification, but do not tap it . Conclusion downgrade oneplus 9 to android 11 exclusive

You get back the iconic stock-plus feel, including the original camera app and system widgets that were replaced by ColorOS-style alternatives in Android 12 and 13.

(not in any folder), you use the Local Update app to select it. The phone will verify the package, warn you about the factory reset, and then begin a 10-12 minute installation process. The Final Recovery

When the OnePlus logo finishes loading, you will see the classic Android 11 welcome setup screen. Post-Downgrade: Stop Automatic Re-Upgrades By following this guide, you'll be able to

Shortly after the OxygenOS 12 update, the OnePlus community forums, Reddit, and Twitter exploded with complaints. Users reported the update was “extremely buggy” and lacked many customization options present in OxygenOS 11. Gadgets360 noted that the update “reportedly removed customisation options” and that early adopters “say that they can't customise icons, status bar, battery icons, or turn the Google Feed off”.

Note: If the Local Upgrade option does not appear, download and install the official OnePlus System Update APK utility to force manual local installations. Step 4: Finalizing the Installation

Go to Settings > System Updates > Settings Gear > Turn off Auto-download/Auto-update. This means the file should not be inside any folder

OnePlus 9 (LE2110, LE2111, LE2113, LE2115, LE2117) Target OS: OxygenOS 11.2.10.10 / 11.2.20.20 (Android 11) Prerequisite: Unlocked Bootloader (Mandatory for cross-version rollback)

Eliminates UI micro-stutters, app lags, and background thermal issues introduced in heavier subsequent updates.

Upgrading to newer Android versions does not always yield a better user experience. If you are facing battery drain, app crashes, or dislike the visual changes on your OnePlus 9, rolling back to Android 11 (OxygenOS 11) is a viable solution.