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UPDATE - 21/12/2021:
The latest version of the SDFtool Flasher has a checkbox option to flash the boot loader with the main firmware to the drive. This is useful for the newer BP50NB40 with SVC: NB52. It's also possible that other newer models may require this option later on. We will all work it out together as we go!!

For the moment, to flash the BP50NB40 SVC:NB52, using the latest SDFtool Flasher, follw the steps below:

1. Flash the drive to BP50NB40 (NB50) 1.03-MK.

Now for the crossflash:

2. Select the RECOVERY option and in the pop up, select the BP50NB40 (NB50) 1.03-MK firmware that you just flashed.
3. Select the BP60NB10 1.00-MK or BU40N 1.00 firmware in the normal drop box.
4. Click START

Drive Information
OS device name: \Device\CdRom0
Current profile: DVD-ROM
Manufacturer: HL-DT-ST
Product: BD-RE WP50NB40
Revision: 1.03
Serial number: SIK02N1VA5340
Firmware date: 2121-07-08 16:09
Bus encryption flags: 17

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

Paladinz wrote: ↑

Fri Aug 25, 2023 5:35 pm

I have just had to purchase an external drive for my new PC and got a LG WP50NB40. When I checked the SDFtool Flasher guide it says

UPDATE - 21/12/2021:
The latest version of the SDFtool Flasher has a checkbox option to flash the boot loader with the main firmware to the drive. This is useful for the newer BP50NB40 with SVC: NB52. It's also possible that other newer models may require this option later on. We will all work it out together as we go!!

For the moment, to flash the BP50NB40 SVC:NB52, using the latest SDFtool Flasher, follw the steps below:

1. Flash the drive to BP50NB40 (NB50) 1.03-MK.

Now for the crossflash:

2. Select the RECOVERY option and in the pop up, select the BP50NB40 (NB50) 1.03-MK firmware that you just flashed.
3. Select the BP60NB10 1.00-MK or BU40N 1.00 firmware in the normal drop box.
4. Click START

My drive info shows

Drive Information
OS device name: \Device\CdRom0
Current profile: DVD-ROM
Manufacturer: HL-DT-ST
Product: BD-RE WP50NB40
Revision: 1.03
Serial number: SIK02N1VA5340
Firmware date: 2121-07-08 16:09
Bus encryption flags: 17

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

Do I still need to crossflash and do those instructions apply to slim drives?

MartyMcNuts wrote: ↑

Fri Aug 25, 2023 7:01 pm

If you want to rip UHD then yes, you have to crossflash it. Those instructions are only for the BP50NB40 and WP50NB40 drives with SVC NB52. Just look at the sticker underneath the drive.

Lance274 wrote: ↑

Fri Oct 13, 2023 11:49 pm

I have a LG WP50NB40 with SVC code N50. What are the steps? Sp far nothing is working.

Thank you

Lance274 wrote: ↑

Sat Oct 14, 2023 4:21 pm

I followed the steps

Write the wp50nb40 1.03
select recover and select bn40 1.

No mention of encryption
the result
Drive Information
OS device name: I:
Manufacturer: HL-DT-ST
Product: BD-RE WP50NB40
Revision: 1.03
Serial number: [redacted]
Firmware date: 2120-05-07 09:29
Bus encryption flags: 17
Highest AACS version: 81

LibreDrive Information
Status: Enabled
Drive platform: MT1959
Firmware type: Patched (microcode access re-enabled)
Firmware version: 1.03
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

No disc inserted

This is with a 4k UHD disk in the drive. MakeMKV was closed and reopened before attempting to read

Lance274 wrote: ↑

Sat Oct 14, 2023 10:38 pm

Thank you for helping me,

I just did this:
1. Flash the drive to BP50NB40 (NB50) 1.03-MK.

Now for the crossflash:

2. Select the RECOVERY option and in the pop up, select the BP50NB40 (NB50) 1.03-MK firmware that you just flashed.
3. Select the BP60NB10 1.00-MK or BU40N 1.00 firmware in the normal drop box.
4. Click START

After the crossflash a popup window:
Command error code 0x82062900

Lance274 wrote: ↑

Sat Oct 14, 2023 11:24 pm

No information available

Error 'OS error - This device does not exist' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.00 SIM03212K2417' at offset '524288'
Error 'OS error - This device does not exist' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.00 SIM03212K2417' at offset '524288'
Error 'OS error - This device does not exist' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.00 SIM03212K2417' at offset '1048576'
Error 'OS error - This device does not exist' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.00 SIM03212K2417' at offset '1048576'
Error 'OS error - This device does not exist' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.00 SIM03212K2417' at offset '32768'

Lance274 wrote: ↑

Sun Oct 15, 2023 1:31 am

The two USB cables are plugged directly into the computer, just in case I removes and reinserted all the cables.
I redid the flash as above, MakeMKV status:
Drive Information
OS device name: I:
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: 1.00
Serial number: SIM03212K2417
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

Then I inserted a new John Wick UHD disk then
The Info block:
No information available

Error:
Error 'OS error - This device does not exist' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.00 SIM03212K2417' at offset '524288'
Error 'OS error - This device does not exist' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.00 SIM03212K2417' at offset '524288'
Error 'OS error - This device does not exist' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.00 SIM03212K2417' at offset '1048576'
Error 'OS error - This device does not exist' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.00 SIM03212K2417' at offset '1048576'
Error 'OS error - This device does not exist' occurred while reading 'BD-RE HL-DT-ST BD-RE BU40N 1.00 SIM03212K2417' at offset '32768'