I ran into the same issue this morning. Of course Samsung was of no help at all; “Just got buy a new one”
I removed the supressor, no change. Then I removed the capacitor, still no change. I measure zero-ish volts across the pin and ground so I figured I had the same issue. I guess not.
Hub went dead today. Was hoping this was my issue. Unfortunately, not. Am getting voltage on all the test points but hub won’t come online. One time as I was flipping it back and forth the red light came on. Then I unplug and plug it back in and it’s dead again. Sigh. Anyone have any clue?