Microphone not working

[Android Central Question]

People can't hear me, when I put the phone on speaker. They always hang up. Also, I can't video chat on Messenger. People can see me, but can't hear me. Help!

 

[B. Diddy]

Welcome to Android Central! Which phone? If they can hear you on a normal call, or if you're using a wired or Bluetooth headset then the secondary mic (at the top of the phone) might be blocked or faulty. Make sure the mic opening isn't clogged by lint or blocked by the case.