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SGH-S400i Flow Chart of Troubleshooting
2-
13
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2-1-5. Bluetooth Part
Bluetooth does not work
Check ANT101
Pin #2 is -6 ~ +4dBm ?
No
Check U310
Pin #2 is High ?
Check U310
Pin #10 ≒ 1.8V ?
ANT101
Resolder or Change
Check the UCP201
Check the U310
END
No
No
Yes
Yes
Yes
Check U103
Pin #16 ≒ 19.2MHz ?
Check the UCP201
No
Yes