G_Jithin_James_pZPS , via OnePlus 9 Pro , Jan 27, 2022 : Why does my OnePlus 9 pro show its processor is snapdragon 855 instead of snapdragon 888 after OS 12 update?
Dresa91 , Jan 27, 2022 : It is a known bug. please stick to the official update thread: https://forums.oneplus.com/threads/oxygenos-12-c-44-update-for-oneplus-9-and-oneplus-9-pro.1537780/ you can fix this bug by reflashing the full zip of the .C44 update
Dresa91 , Jan 27, 2022 : Download the full zip via OxygenUpdater app, install the local upgrade app (https://oxygenos.oneplus.net/OPLocalUpdate_For_Android12.apk ) and do a local upgrade. Follow the steps you can find here: https://forums.oneplus.com/threads/how-to-downgrade-from-oos-12-to-oos-11.1534473/ But: just follow the steps for local upgrade and don’t download the rollback build from this link!