Sim Part - Samsung SGH-M110 Service Manual

9-3. SIM Part

"Insert SIM" is displayed on the LCD
The voltage is 2.8V
at the pin#1 SIM300
Is there any signal
pin #2,3,4 of SIM300?
Check the SIM Card
Yes
Yes
END
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No
Check UCP200, C439
No
Check UCP 200, U300
C136
BC313141A18-IXF-E4
U602
9-5
Flow Chart of Troubleshooting
U103
C117
R107
C118
C607
C632