LG -D605 Service Manual page 106

Check the Connection of uUSB and battery.
And battery should be standard type
Is the uUSB Cable voltage 5.0V
BATT_FET_N state is correct?
Yes
Is it charging properly After turning on?
Change the main board
LGE Internal Use Only
START
Connection OK?
Yes
Yes
Yes
No
END
No
Change I/O connector
No
Change TA (or uUSB Cable)
No
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3. TROUBLE SHOOTING
Only for training and service purposes