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4. TROUBLE SHOOTING
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
START
Volt age at pin1 of
J100 is 1.8V or 3V?
NO
Re-solder J100
YES
Chan ge th e SIM Card
An d try again.
Does i t work
Proper ly?
YES
Change SIM Card
Re-download SW.
Does i t work
Proper ly?
NO
Change the main board
NO
YES
SIM Card will be detecte d.
CHECKING FLOW