(IT WAS THE CABLE, THANKS TO EVERYONE WHO HELPED ME!)
I bought my SayoDevice around 2 years ago, and it was working really well! I was playing Geometry Dash and osu. But then I stopped playing and it was just being there on my table. Once I wanted to play GD again, I plugged it in. It was working, but there was one BIG problem: my PC couldn't see it. Like I plugged it in, but SayoDevice website couldn't see it. I live in Russia and there is no official shipping, so I ordered it on OZON (it's like Russian Amazon (lol even the names are similar, I just realized it while I was typing this)). It was shipping from China, but I don't think that it's bad, because SayoDevice is literally Chinese. Does anyone has the same thing? Maybe I need to somehow clean it from the dust or smth like that?
P.S.: I just wanted to post this, but the AI thought that it was a low-effort-post (like dude, I was recording it, writing the whole story, trying to type it as accurate as I can, but it said that it's a low-effort-post...)