Why mic is not working while in loud speaker
Mic and earpiece is not working when we use loud speaker
Is dit een goede vraag?
Mic and earpiece is not working when we use loud speaker
Is dit een goede vraag?
Check that the microphone voice inlet hole on the top edge of the phone is not blocked or covered over somehow.
Do not use a pin or probe to try and clear it. Try using a vacuum cleaner to suck out any debris (if any).
If it is not blocked it may be a faulty microphone.
Here's the ifixit Redmi Note 9 Pro Vervanging van het scherm which will help you to gain access to the microphone on the board. See the 3rd image (on the right) in Step.23 of the guide.
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