LG BP50Nb40 - UHD Possible

Discussion of LibreDrive mode, compatible drives and firmwares
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808state
Posts: 4
Joined: Tue Mar 04, 2025 1:00 pm

LG BP50Nb40 - UHD Possible

Post by 808state »

Hi,

I picked up an LG BP50NB40 built in Nov 2024 to RIP and backup my UHD 4k collection. When I put a 4k disc into the drive, it does not even recognize the disc. I followed the instructions to enable LibreDrive, and in MakeMKV it shows as Status Enabled but still no dice.

BluRays and DVDs are read fine its just 4K UHD so is it that this drive does not support UHD?

Thanks for any guidance!
Billycar11
Posts: 4579
Joined: Sun Aug 24, 2014 5:49 am

Re: LG BP50Nb40 - UHD Possible

Post by Billycar11 »

did you follow the guide below?
what does your drive info show now?
is it still a BP50 or is it a BP60 now?
Buy a UHD drive from the guide and how to video maker: https://www.makemkv.com/forum/viewtopic ... 20&t=17831
UHD Drives Guide: https://www.makemkv.com/forum/viewtopic ... 16&t=19634
Auto flash kit $25 Email me for one Billycar5924@gmail.com
808state
Posts: 4
Joined: Tue Mar 04, 2025 1:00 pm

Re: LG BP50Nb40 - UHD Possible

Post by 808state »

Billycar11 wrote:
Tue Mar 04, 2025 1:41 pm
did you follow the guide below?
what does your drive info show now?
is it still a BP50 or is it a BP60 now?
Thank you for the help!

Yes, I followed the guide, but I am not super technical, so might have messed it up.

Drive Info shows:
Drive Information
OS device name: E:
Manufacturer: HL-DT-ST
Product: BD-RE BP50NB40
Revision: 1.03
Firmware date: 2120-05-07 09:17
Bus encryption flags: 17
Highest AACS version: 76

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
dcoke22
Posts: 3471
Joined: Wed Jul 22, 2020 11:25 pm

Re: LG BP50Nb40 - UHD Possible

Post by dcoke22 »

An LG BP50NB40 is one that needs to be flashed twice. Look in the 'Recommended Firmware to flash for MakeMKV' section of the Ultimate UHD Drives Flashing Guide.
808state
Posts: 4
Joined: Tue Mar 04, 2025 1:00 pm

Re: LG BP50Nb40 - UHD Possible

Post by 808state »

dcoke22 wrote:
Tue Mar 04, 2025 8:24 pm
An LG BP50NB40 is one that needs to be flashed twice. Look in the 'Recommended Firmware to flash for MakeMKV' section of the Ultimate UHD Drives Flashing Guide.
Pretty sure I did it twice but will try again. I was a little confused what I needed to do different though on the 2nd flash?
jinx100
Posts: 164
Joined: Wed Mar 13, 2013 5:58 pm

Re: LG BP50Nb40 - UHD Possible

Post by jinx100 »

808state wrote:
Tue Mar 04, 2025 4:49 pm
Billycar11 wrote:
Tue Mar 04, 2025 1:41 pm
did you follow the guide below?
what does your drive info show now?
is it still a BP50 or is it a BP60 now?
Thank you for the help!

Yes, I followed the guide, but I am not super technical, so might have messed it up.

Drive Info shows:
Drive Information
OS device name: E:
Manufacturer: HL-DT-ST
Product: BD-RE BP50NB40
Revision: 1.03
Firmware date: 2120-05-07 09:17
Bus encryption flags: 17
Highest AACS version: 76

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
Also look at Marty's SDFtool Flasher viewtopic.php?f=16&t=22896 If the SVC on the bottom of the drive is NB52, Marty's two step process (Write, then Recover) is the updated method. Watch the animation on that link as the Recovery step requires that you enter the binary you had previously Written in a pop-up and then the new binary. The firmware binaries are in Marty's "All You Need Firmware Pack" also given in the SDFtool Flaser link.
808state
Posts: 4
Joined: Tue Mar 04, 2025 1:00 pm

Re: LG BP50Nb40 - UHD Possible

Post by 808state »

jinx100 wrote:
Tue Mar 04, 2025 9:43 pm
808state wrote:
Tue Mar 04, 2025 4:49 pm
Billycar11 wrote:
Tue Mar 04, 2025 1:41 pm
did you follow the guide below?
what does your drive info show now?
is it still a BP50 or is it a BP60 now?
Thank you for the help!

Yes, I followed the guide, but I am not super technical, so might have messed it up.

Drive Info shows:
Drive Information
OS device name: E:
Manufacturer: HL-DT-ST
Product: BD-RE BP50NB40
Revision: 1.03
Firmware date: 2120-05-07 09:17
Bus encryption flags: 17
Highest AACS version: 76

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
Also look at Marty's SDFtool Flasher viewtopic.php?f=16&t=22896 If the SVC on the bottom of the drive is NB52, Marty's two step process (Write, then Recover) is the updated method. Watch the animation on that link as the Recovery step requires that you enter the binary you had previously Written in a pop-up and then the new binary. The firmware binaries are in Marty's "All You Need Firmware Pack" also given in the SDFtool Flaser link.

OK Thank You! I messed up the 2nd part of the process and wrote the 1.03 version twice rather than selecting the 1.00 as per the instructions. Now working great! Appreciate the help!
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