Samsung Galaxy Note 3 SM-N900 Main Mic Solution

Samsung Galaxy Note 3 SM-N900 Main Mic Solution Schematic , Diagram, Circuit 

Samsung Galaxy Note 3 SM-N900 Main Mic Solution Step by Step

Step 1

Check main microphone function

in voice call Handset mode or voice recorder mode

Step 2

Check sub board

connection(HDC900)

Set the HDC900 connection

Step 3

Check the voltage at

C1020 = 2.8V

resolder or replace U1001

Step 4

Check component soldering

statuses of L909, L910

Resolder or replace L909, L910

END

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