Bu40n 100 Firmware Hot ~upd~ -

Do NOT use the stock LG 1.03. You need the "MK" (MakeMKV patched) version. Search for the (available on the MakeMKV forums). Inside the tool, you will find a pack of firmware files. Look for:

frequently highlight thermal and power-related issues, especially when used in external enclosures for 4K UHD ripping. Users commonly experience high temperatures when the drive is pushed to its limits during triple-layer disc reading or high-speed operations. Key Issues & Reports Excessive Heat in Enclosures : Some third-party enclosures, such as those from

The drama peaked when LG began shipping the "1.01" and "1.02" updates. These "service" updates weren't improvements; they were digital padlocks designed to patch the "friendly" loophole. If a user accidentally updated their firmware, the drive's special powers vanished instantly.

Some community members have created patched or “MK” firmware (e.g., BU40N 1.00 from the “DE_flash” pack) that fully unlocks UHD reading. These are often called “hot” because they’re actively used and recommended. bu40n 100 firmware hot

Avoid official v1.04 or newer original LG firmware if you intend to rip UHD discs, as these versions often block the features needed for LibreDrive. 3. Step-by-Step Flashing Guide

The MoodScapes feature offers a unique blend of lifestyle and entertainment benefits, making the BU40N 100 an even more enjoyable and integral part of daily life.

Flashing firmware always carries a risk of "bricking" your drive. Always ensure you are using the correct file for your specific hardware revision and never unplug the drive during the flashing process. Do NOT use the stock LG 1

If your BU40N came with 1.03 or newer and refuses to downgrade (encrypted firmware bootloader), you have two hot options:

While the idea of unlocking a drive's full potential is appealing, there are significant risks associated with flashing firmware, particularly with modified versions:

: Users have reported that version 1.00 is more reliable for burning 100GB BD-XL triple-layer discs compared to later versions, which can sometimes produce "strange bugs" or failures. Inside the tool, you will find a pack of firmware files

are you currently on (e.g., 1.00, 1.03)? What software are you using (MakeMKV, DVDFab)? Is your drive internal or in an external enclosure ?

The dilemma is a trade-off.