Downgrade — Oneplus 9 To Android 11 Exclusive !full!

Place the downloaded rollback .zip file in the root directory of your phone's internal storage (not inside any folder).

By following these steps, you should be able to successfully downgrade your OnePlus 9 to Android 11. However, proceed with caution and at your own risk.

: Check your specific model number under Settings > About Device to ensure you download the correct region-specific rollback package. Step 1: Download the Android 11 Rollback Firmware downgrade oneplus 9 to android 11 exclusive

Download the specific Android 11 rollback ZIP for your model (OnePlus 9 or 9 Pro) and region (Global, India, or Europe) from official OnePlus Community threads.

fastboot flash aop_a aop.img fastboot flash aop_b aop.img fastboot flash bluetooth_a bluetooth.img fastboot flash bluetooth_b bluetooth.img fastboot flash boot_a boot.img fastboot flash boot_b boot.img fastboot flash dtbo_a dtbo.img fastboot flash dtbo_b dtbo.img fastboot flash modem_a modem.img fastboot flash modem_b modem.img # Critical: Flash system as raw (not super) fastboot flash system_a system.img fastboot flash system_b system.img fastboot flash vbmeta_a vbmeta.img fastboot flash vbmeta_b vbmeta.img fastboot flash vendor_a vendor.img fastboot flash vendor_b vendor.img Place the downloaded rollback

You must download the specific OxygenOS 11 rollback ZIP file for your region (IN, NA, or EU). You can often find these in the official OnePlus Community forums .

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”. : Check your specific model number under Settings

If your device becomes unresponsive or the local update method fails, you can use the MSM Download Tool on a Windows PC.

This comprehensive guide details the precise, exclusive method to safely downgrade your OnePlus 9 to Android 11 (OxygenOS 11). Important Prerequisites Before You Begin

fastboot -w fastboot reboot