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Flow Chart of Troubleshooting
9-4
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9-1-2. Sim Part
Check the voltage at pin 1
of SIM700 >= 2.8V ?
"Insert SIM is displayed on the LCD
Check the SIM connector's
(SIM700) connection to
SIM card
Check the UCP300
Resolder or change SIM700
END
No
Yes
Yes
Yes
Yes
No
Is there any signals pin2, 3,
4 of SIM700 ?
Check the UCP300
Check the SIM Card
No
Summary of Contents for GT-S3370
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