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You must have been extremely lucky and got an old unit from wherever you bought it. They stopped putting Pioneer drives in the 43888 early 2025!! You do not need to do anything as it is already UHD compatible out of the box. Just insert a UHD disc and start ripping!! EDIT: Never mind! I searched ar...

I too am sort of confused with my drive, and do not wish to mess this up. I purchased a Verbatim 43888 and did all the research I could on here before starting and thought I was ready to flash until MakeMKV tells me I got a Pioneer UD04 drive, not the LG BU40N I was expecting and folks are saying co...