This firmware version is a critical milestone for 4K UHD ripping and playback.
Newer versions often implement a "booter" update that prevents the drive from accepting older, official LG firmware files. This created a cat-and-mouse game between manufacturers and the enthusiast community, leading to the development of custom flashing tools. How to Check Your Version bu40n 1.00 firmware
BU40N 1.03-MK (a modified version of 1.03 that restores UHD functionality, though it retains some speed limits).For users looking to build a home server, buying a pre-flashed BU40N from a trusted community seller is often worth the premium over retail drives locked with unflashable firmware. This firmware version is a critical milestone for
Often, users don't flash the original factory 1.00, but rather a "clean" or patched version of it (often referred to as BU40N 1.00 MK) provided by the MakeMKV community. This version retains all the 1.00 benefits while ensuring the drive remains compatible with modern SATA-to-USB adapters. Hardware Compatibility New old stock (NOS): Drives manufactured before 2020
4K UHD Ripping: Allows you to create 1:1 backups of 4K Ultra HD Blu-rays for use in media servers like Plex or Jellyfin .