I have a dac adapter connected to my s21 and to car aux lead music plays through car and can call which i can hear them but they cant hear me how can this be resolved . My s10 i just plugged aux in but since s21 got rid of headphone socket its a nightmare
Does your adapter support dual channel (sound + mic)? Some only support single channel. I've had experiences like this too so if that's the case, you should find an adapter that supports both mic and audio channels