SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-10
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2)Slave
SIM502 pin 1 = "H"?
Resolder or replace U504
Check the SIM Card
END
No
Yes
Yes
Yes
No
Check the Clock
After Power ON,
Check SIMCLK Signal on
pin3 of SIM502 in a few second
Yes
No
Replace PBA
After SIM card insert,
SIM502 pin 2 = "H(SIMRST_2)"?
Yes
Phone can't access SIM Card