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8. Level 3 Repair
8-4-18-1. Main MIC
Check the signal of
C9029 = 1.8V
R9003 = 2.4MHz
END
Check main microphone function
In voice call Handset mode
or voice recorder mode
Resolder or replace the U9025 (Codec IC)
YES
NO
YES
Resolder or replace the MIC9000