9 To Android 11 - Downgrade Oneplus

This is the standard method for users currently on a stable version of OxygenOS 12 or 13.

Download the official OnePlus 9 Android 11 Rollback Package for your region. If the file ends in .jar , rename it to end in . Downgrade Oneplus 9 To Android 11

If it downloads as a .zip , rename it to before installing. 3. Execute the Rollback [CLOSED] Roll back - OnePlus Community This is the standard method for users currently

Download the specific rollback package for your region (IN, NA, or Europe). or Europe). Before beginning

Before beginning, ensure you meet these requirements to avoid bricking your device: