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Flow Chart of Troubleshooting
10-7
10-1-3. SIM Part
There is any signal
pin#2,#3,#4 of SIM101
"Insert SIM" is displayed on the LCD
Check the SIM
connector's (SIM101)
connection to SIM Card
check the UCP101 & UCP201
Resolder or change SIM101
END
No
Yes
Yes
Yes
No
Check the SIM Card
Check the voltage at
SIM101 pin #1
≥
2.8V
Check the UCP101
No
3
2
1