LG GX500 - SIM & Usd Trouble

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4. TROUBLE SHOOTING
GX500 Operational Description Revision A
LG Electronics 89/143 LGE Property
4.9 SIM & uSD trouble
SIM Check Points
-Power is working
-Socket soldering
-Proper SIM is used
Figure 4-23. SIM CLK
Pin 13 /
2V9_SIM
Pin 12 /
SIM_CLK
Pin 11 / SIM_IO
Check
soldering
all pin of
socket
Figure 4-22. SUB FPCB Assy