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SGH-S410i Flow Chart of Troubleshooting
2-
5
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2-1-3. Sim Part
The voltage is 2.8V
at the pin #1 of CN401?
Check the U401
"Insert SIM" is displayed on the LCD
END
Check the SIM Card
YES
NO
NO
YES
Is there any signal
pin #2,3,4 of CN401 ?
Check the U401 & OSC201