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Flow Chart of Troubleshooting
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10-
10
10-1-3. Sim Part
Is the voltage is 2.9V
at C304, C305 ?
Check the UCD300
"Insert SIM" is displayed on the LCD
END
Check the SIM Card
YES
NO
NO
YES
Is there any signal
at C306, C307, C308 ?
Check the UCD300