Enable these by going to Settings > About Device > Version and tapping "Build Number" seven times. How to Downgrade (Local Upgrade Method)

If you're missing the stability or features of earlier OxygenOS versions, you can downgrade your Go to product viewer dialog for this item.

Ensure your phone is charged to at least 30% (60% is recommended) to prevent power loss during the flash.

OnePlus removed the local install option in newer updates. You must download and install the to restore this feature. Download the APK from the OnePlus Community forums.

to Android 11. This process is useful for troubleshooting bugs or preparing for custom ROM installations, but it will . Essential Prerequisites