LG -A100 Service Manual page 81

CHECKING FLOW
START
Does the SIM card
support 3V or 1.8V ?
YES
Check the voltage
Level at TP1 Is
2.85V or 1.8V?
YES
Check the voltage
level at TP2 Is
same at TP1?
YES
Check the voltage
level at TP3 changes
low to high?
YES
SIM Card will work
properly.
LGE Internal Use Only
NO
Change the SIM Card.
Only supports 3V or 1.8V SIM card.
NO
NO
NO
- 81 -
4. TROUBLE SHOOTING
Change the SIM Card.
Or Re-download
Re-solder J201
Re-solder J201
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