G1631534293298 , via OnePlus 9 , Jan 25, 2022 : How to downgrade one plus 9 from Android 12 to Android 11?
Aaron2017 , Jan 25, 2022 : You can follow this thread, it explains the downgrade process in detail https://forums.oneplus.com/threads/how-to-downgrade-from-oos-12-to-oos-11.1534473/#post-23947205
pablofg1978 , Jan 25, 2022 : Hello there, Please use the search before creating a new thread, there is an existing thread already open for discussion https://forums.oneplus.com/threads/how-to-downgrade-from-oos-12-to-oos-11.1534473/ Thread closed
