Perhaps a bit anachronistically, only *after* getting my hands on the previously-torn-down 2i4 gen2, i also came into the possession of a 2i4 gen1, that was no longer being detected completely / correctly by the computer. But hey, better late than never, right? I also grabbed a working one (because the price was near-irresistible), to have a known-good source for the firmware, in case that was the issue.
