www.makemkv.com

Well, they would read as the answer has been given quite a few times. :) But anyway, flash MK 3.10 first. That is NOT the same thing as what's on your drive now which is the official 3.10 and can't be downgraded. MK 3.10 will allow you to flash whatever you want.


Yep that was it - I did miss ...

Brand new Asus BW-16D1HT, firmware 3.10. Internally mounted via SATA cable. Windows 10. I'm using a confirmed byte-modified 3.02 bin file "ASUS_BW-16D1HT_3.02_OFFICIAL_(BYTE_PATCHED).bin". Using Asus flasher "ASUS_ODD_FW_Changer_(Modified).exe" gives Updating Failure #4. Using the LG flasher ...