Got a new S21 Ultra a few days ago, and I am noticing some odd behaviour with my USB C headset.
The headphones seem to work fine with calls.
With media/apps - Often with the headphone plugged in, the audio comes out the phone's main speaker. Disconnecting the usb c and reconnecting it usually forces the audio to switch to the headset.
However, if I pause video/audio for more than a few seconds or switch apps the audio jumps back to the main speaker.
I do get an android notification saying "USB device not recognised" when it stops working.
Peter, yes I have bought a dac adapter also, and it has dasticaly improved sound quality thru my Sony MDR-XB50AP wired headphone. Is there any wieless solutions to improving souns out of the Samsung phone?