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Does the SIM card
Support 1.8V or 3V ?
Is Voltage at the TP11.8V or 3V?
Change the
SIM Card and try again.
Does it work
Properly?
SIM card is properly working
LGE Internal Use Only
No
Yes
No
Yes
No
Yes
Change the SIM Card.
This phone supports 1.8V or 3V SIM card.
Is Voltage at the TP2 1.8V or 3V?
Resolder U202
Redownload SW.
Does it work Properly?
Yes
SIM card is properly working.
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Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
No
Change the main board
Only for training and service purposes
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