Advice needed for flashing OEM LG BU40N (Revision TK03)
Posted: Tue Jun 16, 2026 2:09 am
Hi all,
I recently purchased a used LG BU40N drive, which appears to have been pulled from a Toshiba Dynabook laptop. It currently has an OEM firmware version "TK03" (Firmware date: 2019-05-10).
I would like to flash it to enable LibreDrive, and I have prepared the "All You Need Firmware Pack" by MartyMcNuts. Before I proceed, I would like to double-check my plan.
Drive Information
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: TK03
Firmware date: 2119-05-10 11:48
Bus encryption flags: 1F
Highest AACS version: 82
LibreDrive Information
Status: Possible, not yet enabled
Drive platform: MT1959
Since the firmware date is pre-2020, it should not be encrypted. My plan is to use the SDFtool Flasher to flash DE_LG_BU40N_1.03_MK.bin from the firmware pack.
Could you please confirm if this is the correct/safest path for my specific drive revision? I have already created a backup of the original TK03 firmware, so I have a recovery option available.
I have attached my drive info and the label for your reference.
Any advice would be greatly appreciated!
I recently purchased a used LG BU40N drive, which appears to have been pulled from a Toshiba Dynabook laptop. It currently has an OEM firmware version "TK03" (Firmware date: 2019-05-10).
I would like to flash it to enable LibreDrive, and I have prepared the "All You Need Firmware Pack" by MartyMcNuts. Before I proceed, I would like to double-check my plan.
Drive Information
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: TK03
Firmware date: 2119-05-10 11:48
Bus encryption flags: 1F
Highest AACS version: 82
LibreDrive Information
Status: Possible, not yet enabled
Drive platform: MT1959
Since the firmware date is pre-2020, it should not be encrypted. My plan is to use the SDFtool Flasher to flash DE_LG_BU40N_1.03_MK.bin from the firmware pack.
Could you please confirm if this is the correct/safest path for my specific drive revision? I have already created a backup of the original TK03 firmware, so I have a recovery option available.
I have attached my drive info and the label for your reference.
Any advice would be greatly appreciated!