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Flow Chart of Troubleshooting
9-6
9-4. SIM Part
Yes
After SIM card insert,
SIM300 pin 13 = "H(SIM_RST)"?
Replace PBA
No
Yes
After Power ON,
Check SIMCLK Signal on
SIM300 pin15 in a few second
Check the 32.768 kHz OSC
No
Yes
Yes
Yes
No
END
Check the SIM Card
Check the SIM POWER
Phone can't access SIM Card
R337 = "H"?
Summary of Contents for SGH-Z400
Page 32: ...8 PCB Diagrams 8 1 Top ...
Page 33: ...PCB Diagrams 8 2 Bottom ...