Samsung galaxy Not 2 GT-7100 Microphone Part (Sub MIC) Not Working Solution

Samsung galaxy Not 2 GT-7100 Microphone Part (Sub MIC) Not Working Solution Schematic,Circuit,Diagram

Samsung galaxy Not 2 GT-7100 Microphone Part (Sub MIC) Not Working Solution Step By Step

Step 1

Check Sub microphone function

in voice call loudSPK mode

Step 2

Check Sub MIC Soldering

for any damage

Resolder or replace MIC600

Step 3

Check the voltage at

C654 = 2.8V 

Check U601 function

Step 4

Check component soldering

statuses of C634, C637

Resolder or replace C634, C637

Step 5

END

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