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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting and Circuit Diagrams
9-
6
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9-1-3. SIM Part
Check the voltage at
SIM500 pin #1
≒
2.8V
Check the U501 & UCP100
"Please insert SIM card "
Check the SIM500's
Connection to SIM card
END
NO
Check the SIM Card
Resolder or change SIM500
YES
YES
Check the U501
There is any signal
pin#2,#3,#4 of SIM500
YES
NO
NO