iPhone 7s plus microphone not working

Hello~ Take a look at the link once more below by clicking on...

If the microphones on your iPhone aren't working - Apple Support

If working back through the link is of no help you may need to have your IPhone checked out. Click on below to make an appointment...

Genius Bar Reservation and Apple Support Options - Apple

If need be post back for more assistance and take care.

~Katana-San~

Mine is the same but only been since updating software. Is this the same with you?