User Guide

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Flow Chart of Troubleshooting
10-3
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10-1-3.
Sim Part
The voltage is
2.8V
at C227
?
Check the
U
CD300
"
Insert SIM" is displayed on the LCD
END
Check the SIM Card
YES
NO
NO
YES
Is there any signal
pin
C229,
C230, C226?
Check the
U
CD300
&
UCP200
Sim socket checking
"
Is it inserted?"
Insert Simcard
YES
NO