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3.12.6. Ear-Mic Trouble Shooting
Ear MIC control signals are generate by MT6323(U4100)
Case A. Disable detected headset insert.
Change Ear Jack Connector.
Sound play via headset?
Check the left signal
and detection line short when
headset inserted?
Change MT6323(U4100).
Mic works well?
START
END
Didn’t display headset icon and play sound
via speaker although headset insert
Change Main Board
No
Yes
Works well, Yes
Yes
Yes, but still not works
No
No
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