SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-7
9-4. Sim Part
Phone can't access SIM Card
Yes
①
Check the SIMVCC = 3.0V
No
Check the circuit related to
R311, C340
Yes
②
Check the SIM connector's
connector's to SIM card
resolder or change
SIM300
No
③
Yes
Check the related circuit of
SIM300
No
Check the circuit around SIM300
input circuitry
Yes
END