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Original topic:

S21 earphone mic volume and buzzing sound

(Topic created on: 15-11-2022 11:51 AM)
Members_JplJUiN
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Galaxy S21 Series

I got a new S21 ultra recently and have an issue making calls using USB-C wired AKG earphones.

When I connect them, I can hear a lot of crackling and distortion. In calls, the other party cannot hear me properly and what I hear is buzzy and suffers drop out. If I press the volume key to open the volume menu I can see the sliders moving themselves as the phone is probably trying to use the earphones and phone speaker alternately. 

Connecting my old 3.5mm Samsung earphones via a Fiio DAC produces the same issue. Both earphones work in other devices.

Listening to music via wired earphones via the Fiio DAC plays fine so I'm sure all the hardware is ok and there is some issue with the S21 being connected to wired USBc earphones with microphone) that is causing the issue. 

Help! I love using the wired earphones to make handsfree calls (great when they are long calls) but this just doesn't work for me.

I've tried Atmos on/off,  safe mode and rebooted. The issue is there in all modes.

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