I've got a Slim LG-BP50NB40 with SVC CODE: NB52. I followed the "Ultimate UHD Drives Flashing Guide Updated 2023" guide, and did the suggested "NB52 to > BP50NB40-NB50-1.03MK with enc > BP50NB40-NB50-1.03MK with bootloader/full flash > BP60NB10 1.00_HBD from Marty" procedure. So ...