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SGH-S341i Flow Chart of Troubleshooting
2-
3
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3. Sim Part
Check the voltage at
pin#1 of CN101 >=
2.8V ?
"Insert SIM is displayed on the LCD
Check the SIM
connector's (CN101)
connection to SIM
card
Check the U102
Resolder or change CN101
END
No
Yes
Yes
Yes
Yes
No
No
Is there any signals
pin#2,#3,#4 of CN101 ?
Check the U202
Check the SIM Card