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