so I am definetly sure that it is not an hardware problem from the Oculus Quest, I bought one more of it to test it, doesn't work too.
As I want to connect my Quest to my PC, it shows up and I have access to it's data storage and it gets recognized from windows and the oculus software. BUT as I want to perform the USB test it tells me the error 1971063, which is weird because I used it with link for a week before and had no problems. Also when I try the way with my Quest and try to start it with pressing the Link button on it, it loads for some seconds and redirects me to the normal home menu. I was able to play games on steam like Boneworks and also had access to Virtual Desktop. 3 different USB 3.0 cables, including the suggested Anker cable did not work. Even tough the normal USB 3.0 cable which I had in the beginning did not work suddenly. I stayed in contact with the support team and followed their suggested tips how to fix it, like restarting into safe mode and completely reinstalling the software.
I'm absolutely clueless about how to get it work again and would really really apreciate it, if anyone could help me out here.