Sharp SGH-J200 - Manual (Page 37)

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Flow Chart of Troubleshooting
9-6
9-4. SIM Part
Yes
C442 = 'H' ?
No
Check the SIM power
Yes
After Power ON,
Check SIMCLK Signal on
pin 15 of SIM 400
in a few second
Check the Clock
No
Yes
After SIM card insert,
SIM400 pin 13
= "H"
Replace PBA
No
Yes
Check the SIM Card
Yes
END
Phone can't access SIM Card