OPPO does still provide tech support. I recently bought a player online that, I was told, was working, but it wasn't. I contacted OPPO, in northern California, and arranged to send it to them for service. Since the player was bought used, there was no warranty, but the repair charge was reasonable. I now have two working OPPO players (neither one plays 4K discs, but I have other players to cover those), and they deliver even better sound than the two Sony players I have. Best of all, they have multichannel analog outs!