820-3126 1 usb is not working

[MDY]

I have 5V but is stll not working. Any idea?

 

[jadao]

Yes, did you check for blown data filter? You have VBUS (5V) but probably no continuity for data pins.

I don't know the port that is not working, check continuity on L4601, L4611, L4621, L4631 one of them is probably open.