I watched the "WerbeVideo" you posted, ddrueding, and I admit he seems quite good at troubleshooting, but one thing I have a problem with; I would like to have seen the inner winding of the strands of any of those wires/cables in that connector. Why?
I have had some experience with some electrical products made in mainland China that oozed out a green style slime style oddity and after some study I found out that is directly related to the quality of the metal the strands are made of and so I started cutting open some of the cables that were doing that and found an odd grease like substance inside the strands. As I didn't have a need to dig too deep I didn't use any special microscope to try and understand what that grease-like stuff was, nor was it necessary for me to do a lot more time consuming studying of the reasons why or how that stuff got into the wiring.
Maybe a year or so ago on some site I asked and some folks just got back to me as the problem was simply low quality, which isn't such a technical help. But one thing I remember was the wires that had that weird grease like stuff and was oozing out that weird green slime stuff through the plug seemed to heat up more than what one would usually expect for a device not known to cause heat in the wire when the device is in use.
This was all a bit back and I didn't do any special extra studying, but a few months ago at a get-together of some past aviators and flight engineers, one engineer (retired) told me that these days the quality out of mainland China can be hit-or-miss from the same source and just going by reputation isn't going to be a good guide for some products. He knew about that green slime oddity; but I remember, on that site where I asked about it, some of the members thought I was joking. They had no idea that could happen. They had never seen it happen. When I first ran into it, I was also quite surprised. I only did some checking of a few cables and could only compare a few that I knew were quite fine with those that were clearly not fine, but there was no doubt that something weird was going on inside the cables that weren't working quite up to par.
Now that fella in that WerbeVideo film would have had to cut open a number of those cables to check the inside, because the one that was clearly showing heat damage may have had some of that insulation covering melted into the wire strands. I guess I am stating that just going on reputation alone when considering the strands of the wire inside the insulation might not be such a good idea when one is doing a complete troubleshooting task. Yes, it seems weird to check the metal of the strands of the wire itself, but if you do a search about that green stuff that folks sometimes see oozing out of a plug you'll see why the wire itself could be the problem. In that case that WerbeVideo fella is studying it would be termed a wire bundle in aviation. I suppose that is a kind of wire bundle he was working with there.
On the other hand, I don't do any of the gaming stuff these days. I was only involved in that gaming thing so many decades ago when the first game was in a game desk style and we got one in the Navy Club at Yongsan in the ROK and for about one month I really got into that, BUT as soon as the next desk style game thing showed up one day next to the one I had gotten so good at I quit. I never touched that game stuff again. It hit me that it would just grow and grow and on and on and . . . well, I didn't want to get hooked. I forget the name of that first game, but compared to what you folks are into now that was super basic. Just a back-and-forth movement at the bottom and shoot straight up; or something like that. Maybe early 80s. Navy Club was so much more relaxed than the O-Club at Yongsan, except for their super strict rule about head gear.
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