Sim Part - Samsung SGH-C160 Service Manual

9-3. Sim Part

"Insert SIM" is displayed on the LCD
The voltage is 2.8V
at the pin#1 SIM400
Is there any signal
pin #2,3,4 of SIM400?
Check the SIM Card
Yes
Yes
END
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This Document can not be used without Samsung's authorization
No
Check the UCP200, C419
No
Check the UCP 200, U400
9-5
Flow Chart of Troubleshooting