LG KG330 Service Manual page 55

4. TROUBLE SHOOTING
SIM Detect Trouble (2)
START
Does the SIM supports 3V?
Check the
condition of
CON201. Good?
Voltage of pin 1
in
CON201=2.85V
Change SIM card
Does it work
properly?
The SIM is malfunctioned.
Change the SIM.
N o
Yes
N o
Yes
N o
Yes
N o
Yes
Change the SIM. Our Phone
supports 3V SIM only
Resolder or
replace CON201
Check
ABB
Good?
Re-
download
SW Work?
Yes
SIM will be DETECTED.
- 56 -
N o
Replace
N o
Main board