LG BP55EB40 - flash issue

Forum for discussions about UHD-capable dives
MFrost
Posts: 15
Joined: Mon Feb 02, 2026 10:38 pm

Re: LG BP55EB40 - flash issue

Post by MFrost »

thanks, you are very helpful :)
science-nerd
Posts: 19
Joined: Mon Feb 02, 2026 2:26 pm

Re: LG BP55EB40 - flash issue

Post by science-nerd »

MartyMcNuts wrote:
Sat Feb 07, 2026 10:06 pm
MFrost wrote:
Sat Feb 07, 2026 4:47 pm
Which svc code is recommended for flashing, and what is the best manufacturing date of the drive?
For flashing, a LG drive should meet all of the below:

Manufacture date 2016+
Drive platform MT1959
SVC: EB50, NB10, NB12, NB50, NB52, NS50, NS55, NS60 (not sure if there is an EB52 or not but if there is it shold be ok)

Basically, if a drive meets the first 2 but has SVC: EB40, NB40, NS40 forget about flashing it. It's not worth the risk, as you found out...
SVC EB52 works with flashing
Source: trust me bro (posted my drive details above and am happy to provide more info if anyone needs)
Horsecreek
Posts: 2
Joined: Fri Apr 04, 2025 7:47 pm

Re: LG BP55EB40 - flash issue

Post by Horsecreek »

I hope it's OK that I continue on this tread

I have a BP55EB40 drive too (It's a HL-DT-ST BD-RE BP55EB40 to be exact) with 'SVC Code EB52' on the box I've flashed it with the firmware for this drive. All OK. I can rip Blu-rays with no issues. But when I try to load a 4K disc it spins for a minute and then MakeMKV says "No disc inserted"
The drive supports BD-XL

Can I do anything to make it work?


Code: Select all

Drive Information
OS device name: F:
Manufacturer: HL-DT-ST
Product: BD-RE BP55EB40
Revision: 1.03
Serial number: 
Firmware date: 2120-05-07 09:24
Bus encryption flags: 17
Highest AACS version: 78

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
MartyMcNuts
Posts: 4680
Joined: Wed Nov 22, 2017 11:45 pm

Re: LG BP55EB40 - flash issue

Post by MartyMcNuts »

Horsecreek wrote:
Fri Feb 13, 2026 10:02 pm
I hope it's OK that I continue on this tread

I have a BP55EB40 drive too (It's a HL-DT-ST BD-RE BP55EB40 to be exact) with 'SVC Code EB52' on the box I've flashed it with the firmware for this drive. All OK. I can rip Blu-rays with no issues. But when I try to load a 4K disc it spins for a minute and then MakeMKV says "No disc inserted"
The drive supports BD-XL

Can I do anything to make it work?


Code: Select all

Drive Information
OS device name: F:
Manufacturer: HL-DT-ST
Product: BD-RE BP55EB40
Revision: 1.03
Serial number: 
Firmware date: 2120-05-07 09:24
Bus encryption flags: 17
Highest AACS version: 78

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
You need to cross-flash it now. Use the RECOVER method of SDFtool Flasher. See the section for BP50NB40 SVC: NB52 and the gif in the SDFtool Flasher thread.
Cheers :D
----------------------------------------------------------------------------------------------------------------------------
For UHD enabled drives (AU/NZ/SG + Others) & DIY Single Drive Flasher (WW): https://uhdenableddrives.com
MFrost
Posts: 15
Joined: Mon Feb 02, 2026 10:38 pm

Re: LG BP55EB40 - flash issue

Post by MFrost »

Can you provide the exact and correct step-by-step flashing procedure for an LG drive BP55EB40 SVC Code EB52? The information is somewhat scattered across the forum, and it’s hard to figure out what exactly needs to be done.

Thank you in advance.
Billycar11
Posts: 5381
Joined: Sun Aug 24, 2014 5:49 am

Re: LG BP55EB40 - flash issue

Post by Billycar11 »

MFrost wrote:
Sat Feb 14, 2026 10:30 pm
Can you provide the exact and correct step-by-step flashing procedure for an LG drive BP55EB40 SVC Code EB52? The information is somewhat scattered across the forum, and it’s hard to figure out what exactly needs to be done.

Thank you in advance.
See guide below or Marty guide both ways work
I would say if your not on windows my way would be easier other wise the same
Buy a drive from the guide and video maker: https://www.makemkv.com/forum/viewtopic ... 20&t=17831
UHD Drive Guide: https://www.makemkv.com/forum/viewtopic ... 16&t=19634
Auto flash kit $40 Email Billycar5924@gmail.com No attachments
science-nerd
Posts: 19
Joined: Mon Feb 02, 2026 2:26 pm

Re: LG BP55EB40 - flash issue

Post by science-nerd »

MFrost wrote:
Sat Feb 14, 2026 10:30 pm
Can you provide the exact and correct step-by-step flashing procedure for an LG drive BP55EB40 SVC Code EB52? The information is somewhat scattered across the forum, and it’s hard to figure out what exactly needs to be done.

Thank you in advance.
If you are on Linux, see here viewtopic.php?f=3&t=40977

Otherwise use the GUI tool on windows, it is easier to use than commands. But the individual flashing steps by themselves are identical
Horsecreek
Posts: 2
Joined: Fri Apr 04, 2025 7:47 pm

Re: LG BP55EB40 - flash issue

Post by Horsecreek »

MartyMcNuts wrote:
Sat Feb 14, 2026 12:10 am
Horsecreek wrote:
Fri Feb 13, 2026 10:02 pm
I hope it's OK that I continue on this tread

I have a BP55EB40 drive too (It's a HL-DT-ST BD-RE BP55EB40 to be exact) with 'SVC Code EB52' on the box I've flashed it with the firmware for this drive. All OK. I can rip Blu-rays with no issues. But when I try to load a 4K disc it spins for a minute and then MakeMKV says "No disc inserted"
The drive supports BD-XL

Can I do anything to make it work?
You need to cross-flash it now. Use the RECOVER method of SDFtool Flasher. See the section for BP50NB40 SVC: NB52 and the gif in the SDFtool Flasher thread.
Read - Think - Understand - Think - Do it right.
That's a tough process but I succeded. :D :lol:
Now I'm working my way through the 4Ks that my Asus drive couldn't read

viewtopic.php?f=16&t=22896&hilit=SDFtool+Flasher

My workthrough
- first I flashed my drive with the BP50NB40 (NB50) 1.03-MK firmware. I'm not sure if that was necessary at all. Because it didn't effectively changed anything
- Then I flashed with the 'DE_LG_BU40N_1.00.bin' from the zip-file from the link above. Now It works perfect.
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