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Flow Chart of Troubleshooting
9-1-3. Sim Part
"Insert SIM is displayed on the LCD
connector's (CN101)
connection to SIM card
Check the voltage at
pin#1 of CN101 >=
Is there any signals
pin#2,#3,#6 of CN101 ?
Check the SIM Card
Yes
Check the SIM
Yes
2.8V ?
Yes
Yes
END
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No
Resolder or change
No
Check the
U100
No
Check the
U100
9-5
①
CN101
②
②
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