Mic problem in the Nokia E55 usually caused by the hardware failure, include the mic itself. When you find the microphone problem on the Nokia E55, check the mic condition first before you do another steps. Check the mic using the Ohm meter, if the resistance close to zero, it mean that the mic still good and you can continue to the next step. The second step, check the microphone circuit with the help of the Nokia E55 schematic diagram. Is there a broken path? If yes, reconnect the broken path using a thin wire, this technique also called the jumper technique.
Here, mobile repair guide provide a picture relating to the Nokia E55 microphone problem, the picture show you how to repair this problem and what parts that need your attention.
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