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Flow Chart of Troubleshooting
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9-7
9-4. Sim Part
1)Master
SIM200 pin 1,5 = "H"?
Phone can't access SIM Card (slot1)
Resolder or replace UPL400
Check the SIM Card
END
No
Yes
Yes
Yes
No
Check the Clock
After Power ON,
Check SIMCLK Signal on
pin3 of SIM200 in a few second
Yes
No
Replace PBA
After SIM card insert,
SIM200 pin 2 = "H(SIM_RST_1)"?
Yes