Dell laptop and microphone problems

Suddenly, mic stopped working in my Inspiron 6400 Dell laptop. All audio devices are from SigmaTel, and non of my actions (like, turn on Microphone boost) did not help.

The soluiton I found - Go to Control Panel and Open SigmaTel Audio applet. It contains a single checkbox Allow reconfiguration Pop-Ups. You should check the box, and re-insert the microphone. You should see Audio System Event: "The system has detected an audion device connection event." Choose Microphone there and hit Ok.

 

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