Why doesn't the microphone in headphones work on a PC, laptop or phone?

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If your microphone on your headphones suddenly stops working, there are two explanations for this: a mechanical or system malfunction. The first most often appears suddenly, after some time of successful use of the headset. As for the second, it manifests itself over time and is often preceded by reinstalling drivers, updating software, and installing new applications.

What if the microphone doesn't work? If repairs in a workshop are required to eliminate mechanical damage, then you can try to deal with system malfunctions yourself:

1. Main causes of malfunction.
2. Checking the microphone operation.
3. Setting up proper functioning.
4. Mechanical causes of the problem.
5. If the microphone in wireless headphones does not work.
6. General tips for troubleshooting the problem.