of your internal storage (the main folder, not inside any specific folder like "Downloads"). 4. Execute the Downgrade Local Update app you just installed. (settings) in the top right corner. Select the rollback package you moved to your root directory. A warning will appear stating that this will factory reset your device. Confirm the installation. Wait for the progress bar to reach 100%, then tap Troubleshooting: MSM Download Tool
Power off the device. Hold to enter Recovery Mode. Select Wipe Data/Factory Reset . ✅ Downgrade Complete
Paste the file directly there. Do not place it inside Android, DCIM, or any other folder. Step 3: Enable the Local Upgrade Option downgrade oneplus 9 to android 11 exclusive
Confirm the installation. The phone will verify the file and then begin the process, which usually takes 5–10 minutes.
Navigate to your folder to locate the firmware package. of your internal storage (the main folder, not
This process will completely wipe your device. It performs a factory reset that erases all photos, apps, messages, and settings.
The Ultimate Guide: Downgrade OnePlus 9 to Android 11 Exclusive (settings) in the top right corner
With the package in place and the installation utility ready, you can now trigger the downgrade.
: If the tool rejects your file, verify that you downloaded the correct version for your model (e.g., LE2111 for India, LE2115 for North America).
Android 13 removes the native local upgrade gear icon from the settings menu. You must use a dedicated system update tool to sideload the package.
To downgrade your OnePlus 9 device to Android 11, follow these steps: