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Flow Chart of Troubleshooting
3-1-3. Sim Part
"Insert SIM is displayed on the LCD
Check the SIM connector's
(CN301) connection to SIM
Check the voltage at pin#1
of CN301 >= 2.8V ?
Is there any signals
pin#2,#3,#4 of CN301 ?
Check the SIM Card
SIM_IO
C300
Yes
card
Yes
Yes
Yes
END
CN301
6 6
1
1
5
5
2
2
4 4
3
3
G G
G G
7
8 9
10
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This Document can not be used without Samsung's authorization
No
Resolder or change
No
Check the
UCP300
No
Check the
UCP300
C301
C302
C303
3-6
CN301
R300
VSIM
SIM_RST
SIM_CLK
C304
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