Long story short, this is my 1st UHD Friendly drive (WH14NS40). It had to be flashed to rip UHDs with AnyDVD, but I mistakenly flashed it with official UHD drive firmware (WH16NS60), among old and wrong firmwares, until it finally has been working as WH16NS40, ripping but not burning (I don't know since when, either why, but I found impossible to make it burn a single disc, even re-flashing it). So I got a 2nd same model unit that I don't plan to modify, in order to use as burner. I thought the 8 regions hardware reporting by AnyDVD thanks to the firmware patch were for real, and didn't care about the warning (now I see it didn't re-appear because all keys were in file, some guessed), since DVD Region tab in Drive Properties window shows R1 and 4 remaining changes (now I see AnyDVD must be disabled indeed), until I fired up PowerDVD and it suggested to set the drive's DVD region for the 1st time. I plugged the alternate unit and confirmed they come as R0 from LG. Regarding Blu-ray country and region setting it seemed to be A, according to PowerDVD, too. Thanks Ch3vr0n, and thanks coopervid (I've just found you helped me with a flash-related question, a couple of years ago, in MakeMKV forums).