Nokia C5 MIC mouthpiece not working solution

Here's the solution covers for Nokia C5 microphone problem repair. This solution shows the location of the digital microphone on the PCB board, including the line paths that also needs to be trace and check like the microphone supply voltage, MIC clock and MIC data signal line paths.

These three line paths which need to check first before attempting to replace the Digital Microphone Module.

Nokia C5 Microphone Failure Repair Solution

The mic supply voltage line paths is came from the power management chip labeled as GAZOO. while the corresponding Data and Clock  signal line paths is located near the CPU IC. There is a 47 ohms filter resistor is connected across the MIC clock signal, check and or replace it if found damaged or faulty.
If all the line paths is seems all okay, proceed to replace the MIC module.