Why is my Samsung phone microphone not working?Where is the mic on a Samsung A71? mic isn t working

How do I get the microphone to work on my Samsung phone? Why can nobody hear me on my Samsung? How can I test my phone microphone? samsung mic not working on loudspeaker samsung a50 mic not working samsung j2 mic not working samsung j8 mic not working samsung b313 mic not working samsung a10s mic not working samsung j6 mic not working samsung j5 mic not working samsung j7 mic not working samsung a30s mic not working samsung e1200y mic not working samsung a71 mic not working #pin