He searched the name "Tobias" and "Behringer" online. A single forum post from 2016, on a defunct DIY audio board. A user named wrote: "The UCA200 has a fatal flaw. The clock drifts 0.07% per minute. Management knows. They told me to code a workaround. I told them it was a lie. They fired me. So I coded a truth instead. I put myself inside the driver. Every error is a note. Download it. Play it. I am the glitch."
For firmware or general manuals, you can check the Behringer Downloads page by searching for the "U-CONTROL" series. download driver behringer u control uca200 verified