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Flow Chart of Troubleshooting
9-5
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9-1-3. Sim Part
②
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
U100
Resolder or change
CN101
END
No
Yes
Yes
Yes
Yes
No
No
Is there any signals
pin#2,#3,#6 of CN101 ?
Check the
U100
Check the SIM Card
①
②