LG LG-P970 - Page 144

4. TROUBLE SHOOTING
- 144 -
Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
START
Cable is inserted?
Insert cable
No
Yes
Change the Main board
TP1(C502) is 5V?
Yes
Lower FPCB damaged?
Change Lower FPCB connector
Yes
No
USB_D+ is 3.3V?
Check U501
No
Yes