The phone uses 2 different microphones.
There is one at the bottom for when your calls are not on speaker. It is the small hole to the right of the charging port. Sometimes dirt gets trapped in it. The other microphone is at the top on the left. It serves as a noise canceling microphone when you are not on speakerphone. It also serves as the main microphone when you are on speakerphone and video calls.
Making sure the speaker works on phone calls is paramount BGarabrant. When did you start experiencing difficulities with the speak on your phone? Has there been any recent changes made to your phone when issues started?
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