I've been having some problems with Bluetooth codecs and my android Zenfone 8 (TW version). I had manually updated to Android 12 when I noticed the problem, then I went back to Android 11 but the problem persisted.
I've got a Sony wi-c400, which should support AAC as well as SBC. After the clean install of 11 and pairing it seemed to only connect with SBC. I had to enable developer mode to then allow me to enable HD Audio and then it connected to the headset with AAC.
Has anyone else had this problem or know how to enable HD Audio without developer mode?