![background image](http://html.mh-extra.com/html/samsung/gt-i5700/gt-i5700_service-manual_1192443035.webp)
SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-11
9-4. Sim Part
Phone can't access SIM Card
Yes
C548, C550 = "3.0V"?
No
Check the PMIC(U401)
Yes
After Power ON,
Check SIM_CLK Signal on
pin
3
at HDC500
Check the SIM Clock
No
Yes
After SIM card insert,
HDC500 pin
2
= "H(SIM_RST)"?
Resolder HDC500 or replace PBA
No
Yes
Check the SIM Card
Yes
END
After SIM card insert,
check R714 = 'L'?
Resolder HDC500 or replace PBA
No
Yes