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Flow Chart of Troubleshooting
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9-7
9-4. Sim Part
SIM200 pin 1, 4
or R205 = "H" ?
Phone can't access SIM Card
Resolder C204, R205 and C354
Check the SIM Card
END
No
Yes
Yes
Yes
No
Resolder or Replace SIM200
After Power ON,
Check SIMCLK Signal on
pin3 of SIM200 in a few second
Yes
No
Replace PBA
After SIM card insert,
SIM300 pin 2 =
"H(SIM_RST)"?
Yes