What (Windows, macOS, or Linux) are you using?
Create exact, uncompressed MKV or ISO copies of your 4K Ultra HD Blu-rays to store on a local Network Attached Storage (NAS) or media server like Plex or Jellyfin. bu40n 1.00 firmware
You forgot to tick the "Encrypted" checkbox. Re-run the flasher with that box checked. What (Windows, macOS, or Linux) are you using
If your LG BU40N reports in MakeMKV, you have a golden drive . Never update it. It will handle 4K UHD ripping better than almost any other slim drive on the market. Re-run the flasher with that box checked
It fully supports LibreDrive mode in data-extraction software, allowing direct access to the optical disc data without any operating system or firmware interference.
If your computer no longer recognizes the drive, it may be in a boot-loop. Ensure you are using a rear USB port (if using an enclosure) to provide maximum power, and try rewriting the firmware using the command-line recovery steps found in the MakeMKV forums. "Write Fail" Error during Flash