This guide will let you know how to fix PS5 Error CE-109531-9 – “The PS5 Doesn’t Support Bluetooth Audio Accessories”.
1- To fix this error, you will need to go to settings and then go to Accessories. After that, navigate to Bluetooth accessories because this problem mostly happens to headsets. Now you have to delete the controller or headset from this list and then reconnect it.
3- After that, turn off your console completely not on rest mode and delete your cache, and refresh your console. You also need to rebuild your database; all of this you, have to do in safe mode. Finally, hold the power button until you hear 2 beeps.
2- You must delete it from the list and restart your console. Then you need to sign out from your PlayStation account and sign back in and now try to connect the headset or controller.