LG H990ds - USB Connectivity Troubleshooting

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reserved. Only training and service purposes
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3. TROUBLE SHOOTING
I/O Type-C connector is used as the USB port.
3.19 USB
Image
Checking Flow
Start
Check Battery module
Connection OK?
Is the signal ok for
USB+ & - ?(TP1/TP2)
NO
Yes
Change the Main PCB
Change battery module
Yes
No
END
Battery
connector
USB
connector
TP2
TP1
91