Ultimate UHD Drives Flashing Guide Updated 2026

[MartyMcNuts]

Hello,

I am also having trouble with my BP50NB40 SVC NB52 (manufactured 1/2026). I cannot seem to locate the BP50NB40 (NB52) 1.03-MK bin file. Can someone point me in the direction of where to find this? I only see the HL-DT-ST-BD-RE_BP50NB40-NB50-1.03-NM00800-212005070917.bin located in the "The all you need firmware pack". Full disclosure - I downloaded this to my drive on accident already.

I also downloaded the "Hybrid_Firmware_for_BP50NB40_to_BP60NB10" pack but those were not successful either. I need the BP50NB40 (NB52) 1.03-MK file still in order to proceed with flashing, I think? Once I have that, I see I need to crossflash by recovering the drive first, as previously stated by MartyMcNuts.

Any and all help welcome! I'm a bit of a newbie, so any and all instruction/feedback welcome

Thank you!

No, you want the BP50NB40 NB50 1.03 MK firmware, not NB52.

Everything you need is in my all you need firmware pack along with the gif showing you what to do in the first post of the SDFtool Flasher thread.