LG -T300 Service Manual page 75

4. TROUBLE SHOOTING
CHECKING FLOW
Change the battery
Is I/O Connector(CN205)
Pin 1 of Charging IC(TP01) = 5.1V ?
LGE Internal Use Only
START
Battery is charged?
NO
well-soldered ?
YES
Check the voltage at
YES
Battery is charged?
YES
Charging is
properly operating
4. TROUBLE SHOOTING
YES
Charging is
properly operating
NO
Resolder the CN205
(Pin 1 : VBUS_USB)
NO
The TA is out of order
Change the TA
NO
Replace the main board
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