Bu40n 1.00 Firmware Jun 2026
: Often, you cannot go directly to 1.00. Users typically flash 1.03-MK or 1.04-MK first because these modified versions "break" the downgrade protection.
The BU40N 1.00 firmware, being a version of firmware for a specific device (potentially a NAS - Network Attached Storage - device or a similar piece of network equipment), likely includes a range of features designed to enhance performance, security, and compatibility. Some of these features may include:
The original LG BU40N firmware version 1.00 was released before these strict, unbypassable restrictions were fully implemented into the drive's code. This makes the 1.00 firmware "4K Friendly." It allows specialized archiving software to access the raw data structure of a 4K disc, enabling users to create bit-perfect digital backups of their movies for local media servers like Plex or Jellyfin. 2. The Problem with Newer Firmware (1.01, 1.02, 1.03+)
More importantly, it is highly prized by the data-hoarding and home theater communities because it can be placed into an external USB enclosure (like a Vantec or Orico slim enclosure). This transforms it into a highly portable, powerhouse 4K ripping drive. Why is the 1.00 Firmware So Important?
Because of its compact size, it is frequently used by enthusiasts who build custom, portable external ripping rigs by placing the BU40N into a slim USB 3.0 external enclosure. Why is Firmware 1.00 the "Holy Grail"? bu40n 1.00 firmware
Click "Browse" and navigate to the MakeMKV firmware directory. Select the correct, untouched HL-DT-ST-BD-RE_BU40N-1.00 bin file.
: Some users have reported that versions newer than 1.00 (even modded ones) struggle to reliably burn 100GB BD-XL discs, making 1.00 the more stable choice for both reading and writing large media.
In modern data preservation workflows, users rarely stay on the stock LG 1.00 firmware. Instead, they use the stock 1.00 architecture as a safe stepping stone to flash .
: Newer stock firmware versions (like 1.01, 1.02, or higher) actively block the drive from reading 4K discs on unauthorized software. They also attempt to lock the drive's bootloader to prevent manual downgrades. The Benefits of Flashing to 1.00 : Often, you cannot go directly to 1
Click the "Start" or "Write" button. Do not turn off your computer or unplug the drive during this process.
This specific version is favored over newer official firmware (like 1.01 or 1.04) or even the BP60NB10 variant:
: Many users report that while 1.03-MK might read slightly faster initially, 1.00 is more reliable at finishing difficult rips without timeouts. How to Flash the BU40N 1.00 Firmware
Later versions sometimes cause the drive to "spin down" or stall indefinitely during a rip; 1.00 generally resumes or maintains speed more consistently. 🛠️ How to Get Version 1.00 Some of these features may include: The original
. It facilitates cross-flashing on drives like the LG BP50NB40 and acts as a "Gold Standard" for achieving stable, high-speed UHD read performance . For technical details and flashing guides, visit MakeMKV Forum
The LG BU40N is a highly popular internal Ultra HD (UHD) Blu-ray drive designed for laptops and slim desktop builds. However, its out-of-the-box performance is strictly limited by corporate digital rights management (DRM). If you want to back up your expensive 4K movie collection to a media server like Plex, the factory firmware will stop you.
: Unlike newer "MK" (MakeMKV) patched versions, the original BU40N 1.00 Go to product viewer dialog for this item.