Downgrade Oneplus 9 To Android 11 Jun 2026

There are two official ways to downgrade (plus a risky third). Stick to the official methods.

Your OnePlus 9 is now brand new with factory Android 11. Downgrade Oneplus 9 To Android 11

This will wipe your phone and relock the bootloader if it was unlocked. There are two official ways to downgrade (plus