Nokia 6220c Mic Problem solution with help of diagram, oserve diagram and apply jumpers like diagram.
The Diagram show you how to jumper mic in Nokia 6220c.as in diagram we can see there are four prints in mic.one of these points is ground.and the front prints of it are for next point
between these two point add a 1k resistance.so with this diagram you can use only two point and mic will work well and ok.
Nokia 6220c Mic Not Working Solution By Jumpering

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