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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting and Circuit Diagrams
3-8
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3-1-3. SIM Part
"Please insert SIM card"
END
Check the voltage
at SIM600
pin#1 = 2.85V ?
Check the SIM600
connect to SIM card
socket
YES
YES
Resolder or change SIM600
NO
Change the SIM600
check SIM600 and UCP300
NO
Check the SIM card
There is any signal
pin#2, #3, #4 of SIM600
NO
YES