Flashing BU40N : almost there, yet need help

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Theozefrench
Posts: 8
Joined: Tue Sep 08, 2020 10:10 am

Flashing BU40N : almost there, yet need help

Post by Theozefrench » Wed Aug 05, 2026 10:07 am

Hi there,

After my previous BU40N flashed years ago died during the heatwave, I bought another one and am trying to flash it.
I'm on MacOS, using terminal and following the instructions from this post : viewtopic.php?t=19634
MakeMKV when launched displays this information :
Drive Information
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: 1.05
Serial number: MOBQ3AI2134
Firmware date: 2124-04-23 13:47
Bus encryption flags: 17
Highest AACS version: 81

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

No disc inserted


After copying the SDF.BIN and the firmware file to /tmp I run the flash command and gets this in return :
./makemkvcon f -d '/IOBDServices/CCAE52B9' -f /tmp/sdf.bin rawflash main -i '/tmp/DE_LG BU40N_1.00.bin'

Reading input file /tmp/DE_LG BU40N_1.00.bin
Flashing flags = 0x0 : 0 0 0 0 : ---- ---- ---- ----
Current Drive ID: HL-DT-ST_BD-RE_BU40N_1.05_212404231347_MOBQ3AI2134
Ready to write drive flash memory.
Type "yes" to continue, "no" to abort
yes
Operation started: Sending flash image to drive
100% Operation finished
Operation started: Programming flash
100% Operation finished
Done successfully


Yet relaunching MakeMKV doesn't show any difference.
I have tried with MakeMKV 1.17.7 and 1.18.3, and with both firmwares HL-DT-ST-BD-RE_BU40N-1.03-NM00000-211810241934 and DE_LG BU40N_1.00.bin, with the same result each time.

The drive still mounts a dvd.
There has to be something I do wrong but I can't find it.

Any help from you guys would be much appreciated, thanks in advance.

MartyMcNuts
Posts: 4975
Joined: Wed Nov 22, 2017 11:45 pm

Re: Flashing BU40N : almost there, yet need help

Post by MartyMcNuts » Wed Aug 05, 2026 10:15 am

Theozefrench wrote: Wed Aug 05, 2026 10:07 am Hi there,

After my previous BU40N flashed years ago died during the heatwave, I bought another one and am trying to flash it.
I'm on MacOS, using terminal and following the instructions from this post : viewtopic.php?t=19634
MakeMKV when launched displays this information :
Drive Information
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: 1.05
Serial number: MOBQ3AI2134
Firmware date: 2124-04-23 13:47
Bus encryption flags: 17
Highest AACS version: 81

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

No disc inserted


After copying the SDF.BIN and the firmware file to /tmp I run the flash command and gets this in return :
./makemkvcon f -d '/IOBDServices/CCAE52B9' -f /tmp/sdf.bin rawflash main -i '/tmp/DE_LG BU40N_1.00.bin'

Reading input file /tmp/DE_LG BU40N_1.00.bin
Flashing flags = 0x0 : 0 0 0 0 : ---- ---- ---- ----
Current Drive ID: HL-DT-ST_BD-RE_BU40N_1.05_212404231347_MOBQ3AI2134
Ready to write drive flash memory.
Type "yes" to continue, "no" to abort
yes
Operation started: Sending flash image to drive
100% Operation finished
Operation started: Programming flash
100% Operation finished
Done successfully


Yet relaunching MakeMKV doesn't show any difference.
I have tried with MakeMKV 1.17.7 and 1.18.3, and with both firmwares HL-DT-ST-BD-RE_BU40N-1.03-NM00000-211810241934 and DE_LG BU40N_1.00.bin, with the same result each time.

The drive still mounts a dvd.
There has to be something I do wrong but I can't find it.

Any help from you guys would be much appreciated, thanks in advance.
You need 2 flashes as this has encrypted firmware.

First flash should be to HL-DT-ST-BD-RE_BU40N-1.03-NM00000-211810241934 using rawflash enc.

Second flash should be to DE_LG BU40N_1.00 using rawflash main.
Cheers :D
----------------------------------------------------------------------------------------------------------------------------
** NEW Single Drive Flasher ** available worldwide! https://payhip.com/b/MyeJ9
Email: martymcnuts@outlook.com

Sayaka
Posts: 176
Joined: Sat Feb 28, 2026 3:00 pm

Re: Flashing BU40N : almost there, yet need help

Post by Sayaka » Wed Aug 05, 2026 11:06 am

(I know this is off-topic, but after this, you can upgrade to 1.18.4 here if you so wish : https://mega.nz/file/ziggWLhY#ZTkE4X3tp ... JabD6mc5Ek)

Theozefrench
Posts: 8
Joined: Tue Sep 08, 2020 10:10 am

Re: Flashing BU40N : almost there, yet need help

Post by Theozefrench » Wed Aug 05, 2026 11:13 am

THANK YOU !

Drive Information
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: 1.00
Serial number: MOBQ3AI2134
Firmware date: 2116-12-20 15:28
Bus encryption flags: 17
Highest AACS version: 81

LibreDrive Information
Status: Enabled
Drive platform: MT1959
Firmware type: Original (unpatched)
Firmware version: 1.00
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

No disc inserted

Theozefrench
Posts: 8
Joined: Tue Sep 08, 2020 10:10 am

Re: Flashing BU40N : almost there, yet need help

Post by Theozefrench » Wed Aug 05, 2026 11:15 am

Sayaka wrote: Wed Aug 05, 2026 11:06 am (I know this is off-topic, but after this, you can upgrade to 1.18.4 here if you so wish : https://mega.nz/file/ziggWLhY#ZTkE4X3tp ... JabD6mc5Ek)
Will do, thanks !

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