Mic not working

[Waleej33]

Hello iam samsung a50 user 3 days before my headphone mic start stop working on my phone. I have restarted my phone several times and  clear app data and cache data but it still not working. speaker and headphone is working perfectly but when I try to use my voice through mic the other person cannot hear me plz help me

[innovativeAR121]

Bro check your mic and clean with brush
If you put new protector or sheet then remove sheet from mic