www.makemkv.com

Original drive: Buffalo BRXL-PUS6U3B-TU (BU40N) Portable Slim
Accidentally flashed: DE_LG_WH16NS60_1.02_MK.bin
SDFtool now reports MT1959 Platform And see's this: G: BUFFALO_Optical_Drive_1.02_211810291936_MO1Q29B3511
Recovery with DE_LG_BU40N_1.03_MK.bin returns immediately to Ready...
Normal write fails with 0xff05c103
Windows can see the drive but won't read any media and the tray will not open.

Drive Information
OS device name: G:
Manufacturer: BUFFALO
Product: Optical Drive
Revision: 1.02
Serial number: MO1Q29B3511
Firmware date: 2118-10-29 19:36
Bus encryption flags: 17
Highest AACS version: 77

LibreDrive Information
Status: Enabled
Drive platform: MT1959
Firmware type: Patched (microcode access re-enabled)
Firmware version: 1.02
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

No disc inserted



Is there a path to recovery? Never should have tried to do this so late.

Unplug right away
Until you are recovering it leave it unplugged

See guide for recovery

Or email me for a recovery flasher see below

Billycar11 wrote: Fri Jun 26, 2026 5:09 am Or email me for a recovery flasher see below

Recommended under the circumstances.

I would most definitely recommend a recovery flasher as well, but out of pure technical curiosity, am I correct in assuming that the CLI version would be something like this ?
(Billy, your guide has a recovery guide for a 5.25 crossflashed to a slim, but this is a slim that was crossflashed to a 5.25, so I tried to do this in a way that seemed logical to me)

First thank you all for the help. I quit trying anything after the flash error. Sending email right after I post this.

Thank you again!

I was able to fix my drive with this command: makemkvcon64.exe f --all-yes -d G: rawflash nocheck,boot="MT1959 Boot JB8 " -i "C:\buffalorecovery\DE_LG_BU40N_1.03_MK.bin"

I have successfully ripped two UHD discs and a blu-ray. Huge thanks to all that helped! I am now officially done with flashing drives!!

Oh my, thank you for confirming this. That was a risky move on your part though, as I was basically asking Billy whether what I posted was correct, as I wasn't 100% sure of what I was doing.

Still, now I know that this works in case the same thing ever happens to me by accident, so thank you Billy for writing the recovery guide and thank you XIgnals for confirming my theory. I'm glad I was able to help.