Sim Part - Samsung SGH-D800 Service Manual

SGH-D800 Flow Chart of Troubleshooting

2-1-3. Sim Part

"Insert SIM is displayed on the LCD
connector's (CN 111)
connection to SIM card
Check the voltage at
pin#1 of CN111 >=
Is there any signals
pin#2,#3,#6 of CN111 ?
Check the SIM Card
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Yes
Check the SIM
Yes
2.8V ?
Yes
Yes
END
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No
Resolder or change
No
Check the U101
No
Check the U201
2-9
CN111