Sim Part - Samsung GT-B7702 Service Manual

10-4. SIM Part

1) Master
Phone can't access SIM Card (slot1)
SIM501 pin 1,5 = "H"?
After Power ON,
Check SIMCLK Signal on
pin3 of SIM200 in a few second
After SIM card insert,
SIM200 pin 2 = "H(SIMRST_1)"?
Check the SIM Card
Yes
Yes
Yes
Yes
Yes
END
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No
Resolder or replace U504
No
No
9-8
Flow Chart of Troubleshooting
Check the Clock
Replace PBA