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Flow Chart of Troubleshooting
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9-3
9-2. Sim Part
Check the SIM POWER
No
Yes
Replace PBA
After SIM card insert,
SIM_RST (C635) = "H"?
Yes
END
Check the SIM Card
After Power ON,
Check C634(SIM_CLK Signal)
in a few second
Check the Clock
No
Yes
Yes
No
Phone can't access SIM Card
CD600 VDD_SIM_3.0V = "H"?