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10-4. Sim Part
"Insert SIM is displayed on the LCD
Check the SIM connector's
(SIM500) connection to SIM card
Check the voltage at pin#1 of
SIM500 >= 3.0V ?
Is there any signals pin#2,#3,#4
Check the SIM Card
Yes
Yes
Yes
of SIM500 ?
Yes
Yes
END
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No
Resolder or change SIM500
No
No
10-9
Flow Chart of Troubleshooting
Check the U400
Check the U400
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