Microphone and phone call speaker don't work.

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2

2019-01-17 05:46

inb4: sorry for my English
Hello, I'm curious what is responsible for microphone and internal speaker. After I replaced the screen (I ordered the one with frame, never again) and assembled all the parts I found everything work except the microphone and speaker. The thing is, external speaker does work. I can't hear the person while phone call though.
I can provide pictures if needed.
Thank you in advance.