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I got this here drive and i want to make it read UHD discs. What firmware should i flash it to?

Drive Information
OS device name: J:
Manufacturer: BUFFALO
Product: Optical Drive
Revision: BN14
Serial number: MODM59H0850
Firmware date: 2121-06-21 13:33
Bus encryption flags: 1F
Highest AACS version: 82

LibreDrive Information
Status: Possible, not yet enabled
Drive platform: MT1959

see guide below or email me or marty for an auto flasher
its a bu40n with encrypted fw if your using the guide

Billycar11 wrote: ↑

Fri Jan 16, 2026 12:49 am

see guide below or email me or marty for an auto flasher
its a bu40n with encrypted fw if your using the guide

do i have to decrypt the firmware first or can i install the bu40n firmware directly?

BubbleStar wrote: ↑

Fri Jan 16, 2026 1:17 am

do i have to decrypt the firmware first or can i install the bu40n firmware directly?

No, BU40N 1.03-MK replaces the encrypted firmware.

MartyMcNuts wrote: ↑

Fri Jan 16, 2026 1:36 am

BubbleStar wrote: ↑

Fri Jan 16, 2026 1:17 am

do i have to decrypt the firmware first or can i install the bu40n firmware directly?

No, BU40N 1.03-MK replaces the encrypted firmware.

Worked like a charm. Thanks
(tho i have to plug in both usbs for it to read uhd disc lol)

BubbleStar wrote: ↑

Fri Jan 16, 2026 1:52 am

MartyMcNuts wrote: ↑

Fri Jan 16, 2026 1:36 am

BubbleStar wrote: ↑

Fri Jan 16, 2026 1:17 am

do i have to decrypt the firmware first or can i install the bu40n firmware directly?

No, BU40N 1.03-MK replaces the encrypted firmware.

Worked like a charm. Thanks
(tho i have to plug in both usbs for it to read uhd disc lol)

Yes, you should always plug in both USB plugs as one generally provides the additional power that the drive needs.

Thanks this helped. It was driving me nuts the last few days on Ubuntu. It would read on Windows but not Ubuntu. I flashed the firmware and it worked. The LG drive was working but I flashed that a while ago.