BU40N Firmware version PRO4

Discussion of LibreDrive mode, compatible drives and firmwares
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lilsheep23
Posts: 4
Joined: Thu May 13, 2021 1:55 am

BU40N Firmware version PRO4

Post by lilsheep23 »

I just bought a BU40N external drive. I've read the main threads regarding downgrading the firmware but I cannot seem to find the appropriate version for my drive:

Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: PR04
Serial number: 904HS011039
Firmware date: 2118-12-24 16:04
Bus encryption flags: 1F

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

I cannot find any references on this forum referencing PRO4, any suggestions are welcome.

Many Thanks!
Billycar11
Posts: 1585
Joined: Sun Aug 24, 2014 5:49 am

Re: BU40N Firmware version PRO4

Post by Billycar11 »

flash to 1.03mk as the guide says
it says any firmware
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 self flash kit Email me for one Billycar5924@gmail.com
lilsheep23
Posts: 4
Joined: Thu May 13, 2021 1:55 am

Re: BU40N Firmware version PRO4

Post by lilsheep23 »

I've tried downgrading to 1.03mk using SDFtool but I get the same error code: 0x8f052400 . I've attempted all of the variations of the firmware for BU40N but none have worked.

Note that I am using a Windows 10 VM to attempt the downgrade; the drive was also bought in China so I believe I'm looking at different firmware.
Billycar11
Posts: 1585
Joined: Sun Aug 24, 2014 5:49 am

Re: BU40N Firmware version PRO4

Post by Billycar11 »

lilsheep23 wrote:
Fri May 14, 2021 12:42 am
I've tried downgrading to 1.03mk using SDFtool but I get the same error code: 0x8f052400 . I've attempted all of the variations of the firmware for BU40N but none have worked.

Note that I am using a Windows 10 VM to attempt the downgrade; the drive was also bought in China so I believe I'm looking at different firmware.
no vms thats your problem
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 self flash kit Email me for one Billycar5924@gmail.com
lilsheep23
Posts: 4
Joined: Thu May 13, 2021 1:55 am

Re: BU40N Firmware version PRO4

Post by lilsheep23 »

Ok, so I had an IT guy at work help me out and set it up on a Windows desktop. Tried it first via USB connection, then via SATA. Still the same error code: 0x8f052400.
Billycar11
Posts: 1585
Joined: Sun Aug 24, 2014 5:49 am

Re: BU40N Firmware version PRO4

Post by Billycar11 »

lilsheep23 wrote:
Tue May 18, 2021 10:02 pm
Ok, so I had an IT guy at work help me out and set it up on a Windows desktop. Tried it first via USB connection, then via SATA. Still the same error code: 0x8f052400.
then it may be time to buy a preflashed drive from one of the sellers
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 self flash kit Email me for one Billycar5924@gmail.com
lilsheep23
Posts: 4
Joined: Thu May 13, 2021 1:55 am

Re: BU40N Firmware version PRO4

Post by lilsheep23 »

I live in China, the cost of customs would be prohibitive.
Coopervid
Posts: 231
Joined: Tue Feb 19, 2019 10:32 pm

Re: BU40N Firmware version PRO4

Post by Coopervid »

Try the ASUS modified flasher instead of SDFTool.
GUNNER
Posts: 2
Joined: Wed May 06, 2020 10:58 pm

Re: BU40N Firmware version PRO4

Post by GUNNER »

Coopervid wrote:
Thu May 20, 2021 9:30 am
Try the ASUS modified flasher instead of SDFTool.
What he said. I had the same issue as you using the SDFTool. I used the Asus modified flasher in Administrator mode and it flashed my new BU40N with 1.01 firmware to HL-DT-ST-BD-RE_BU40N-1.03-NM00000-211810241934 firmware and it rips 4K just fine
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