S7 mic not working during phone calls

[AC Question]

My mic will not work during regular phone calls, will work when calling through speakerphone.
Cannot use Google with voice either.

 

[B. Diddy]

Welcome to Android Central! Speakerphone uses the secondary mic (the one near the top of the phone), so it may be that your primary mic is faulty (or blocked by debris, like lint). Does it work with a wired or Bluetooth headset?