LG GX500 Service Manual page 90

GX500 Operational Description
Card insert
Figure 4-25. MMC_DETECT SIGNAL
Checking Flow
START
Check Micro SD card voltage
(2V9_VMME)
TF socket pins
are well soldered
Yes
Check proper
uSD?
Assemble
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Resolder it
No
(check data line
TP 1 is 2.9V Signal)
Yes
Replace Main Board
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4. TROUBLE SHOOTING
Card Deject
LGE Property
Revision A
LGE Internal Use Only