Downgrade Oneplus 9 To Android 11 -

Before you begin, make sure you have:

Because OxygenOS 12 often hides the "Local Upgrade" option, you must use a specific workaround application . Downgrade Oneplus 9 To Android 11

: Choose the rollback ZIP file you downloaded. A warning will appear stating that your data will be erased. Before you begin, make sure you have: Because

Remember: Avoid random file-hosting sites. If you follow this guide step-by-step, your OnePlus 9 will be back on Android 11 within 20 minutes. Before you begin