Downgrade Oneplus 9 To Android 11 !!link!! Page
Downgrading your Android 11 (OxygenOS 11) is a common move for users looking to escape bugs or performance issues in newer versions like OxygenOS 12 or 13 . This process will completely and irreversibly wipe all data
Rollback Files:
You need the correct rollback package for your specific region (India, Global, or NA) and the OnePlus Local Update APK if your current settings menu lacks the "Local Install" option. Step-by-Step Downgrade Process Download the Rollback Package Downgrade Oneplus 9 To Android 11
Prerequisites
- Windows PC (10 or 11)
- Original OnePlus USB-C cable
- MSM Tool for OnePlus 9 (specific to your model, e.g., LE2115_MSM_Tool)
OxygenOS 11.2.10.10
OnePlus does not host these files on its main site but releases them via community forums. For the OnePlus 9, the final Android 11 rollback build is usually or similar. Downgrading your Android 11 (OxygenOS 11) is a