Sim Part - Samsung SGH-B100 Service Manual

Flow Chart of Troubleshooting

10-1-3. Sim Part

"Insert SIM is displayed on the LCD
connector's (SIM300)
connection to SIM card
Check the voltage at
pin#1 of SIM300 >=
Is there any signals
pin#2,#3,#4 of SIM300 ?
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
No
Check the
10-6
SIM300
UCP300
UCP300