Sim Part - Samsung SGH-C250 Service Manual

3-1-3. Sim Part

"Insert SIM is displayed on the LCD
connector's (SIM103)
connection to SIM card
Check the voltage at
pin#1 of SIM103 >=
Is there any signals
pin#2,#3,#4 of SIM103 ?
Check the SIM Card
This Document can not be used without Samsung's authorization
Yes
Check the SIM
Yes
2.8V ?
Yes
Yes
END
SAMSUNG Proprietary-Contents may change without notice
No
Resolder or change
No
Check the UCP101
No
Check the UCP101
3-7
Flow Chart of Troubleshooting
①
SIM103
②
③