from the phone. Users are advised to use services like Google Photos or the OnePlus Switch app to secure their files before starting. The Local Update Tool
Exclusive feedback from our testing lab (OnePlus 9, 8GB/128GB, originally on Android 13):
If you want to install Google Apps, such as Google Play Store, Google Maps, and Google Assistant, follow these steps: downgrade oneplus 9 to android 11 exclusive
In cases where the software fails entirely, the community relies on the MSM Download Tool
: After completion, the device reboots into recovery mode to perform a factory reset. After about 4 to 5 minutes of initial booting, the familiar Android 11 setup screen returns. Advanced Solutions for "Bricked" Devices from the phone
The OnePlus 9 series was launched with great fanfare, boasting impressive specs and features, including Android 12 out of the box. However, not everyone may be thrilled with the latest operating system, and some users might want to downgrade their device to Android 11. If you're one of them, you're in the right place. In this article, we'll walk you through the process of downgrading your OnePlus 9 to Android 11, exclusively.
: A common technical hurdle involves file extensions; some downloaders add a After about 4 to 5 minutes of initial
The built-in system installer cannot find the rollback package if it sits inside a folder. Open the app on your OnePlus 9. Go to your Downloads folder. Copy or cut the renamed .zip rollback file.
to Android 11 (OxygenOS 11), you must use a and a specific local update APK , as the standard system settings often hide the local upgrade option on newer Android versions. Critical Pre-Checks
: If your phone becomes unresponsive or "bricked," you may need to use the MSM Download Tool on a PC to force-flash the original firmware. Verification : After the first boot, go to Settings > About Phone to confirm you are on Android 11. for your region's rollback package? Oneplus 9 Pro | Downgrade to OXYGEN OS 11