Du har 3st mikrofoner i s21
Kolla så du inte har fått hårstrån i dessa hål eller mobilskal som skaver.
Du kan testa mikrofonen själv.
Open the Camera app
Tap the Record button
Speak into the phone
Tap the Stop button
Tap the video thumbnail in the bottom right corner
Tap the Play button
The video will play the first time with sound then automatically replay muted
Listen to the video (make sure your media volume is turned up)
Tap Pause or the Home button to stop the video