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SGH-E630 Flow Chart of Troubleshooting
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7-
15
10. Key Back Light
1. Main Key Part
C524 = "H"?
Check the PMU related to "VDD_KEY"
END
No
Yes
Yes
Main Key Backlight does not work
2. Sub Key Part
C531 = "H"?
Check the PMU related to "BLVDD"
END
No
Yes
Sub Key Backlight does not work
Yes