Pioneer UD04FAL

Discussion of LibreDrive mode, compatible drives and firmwares
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cristi2077
Posts: 2
Joined: Tue May 12, 2026 10:30 am

Pioneer UD04FAL

Post by cristi2077 »

Hello everyone,

I have an UD04FAL drive that I intend to use for archival purposes. I'm currently looking for a newer firmware version, as my unit is running 1.21/ID19.
Does anyone have a newer firmware ? I could not find anything on pioneer site.

Any help would be greatly appreciated!

Drive Information
OS device name: E:
Manufacturer: PIONEER
Product: BD-RW BDR-UD04
Revision: 1.21
Serial number:
Firmware date: 2018-04-26
Bus encryption flags: 1B

LibreDrive Information
Status: Enabled
Drive platform: RS8A10
Firmware name: PIONEER BDR-US04
Firmware type: Original (unpatched)
Firmware version: 1.21/ID19
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

Cheers !
dcoke22
Posts: 4501
Joined: Wed Jul 22, 2020 11:25 pm

Re: Pioneer UD04FAL

Post by dcoke22 »

The general recommendation is to leave the firmware alone.
OneDay
Posts: 59
Joined: Wed Jun 10, 2020 12:01 am

Re: Pioneer UD04FAL

Post by OneDay »

If you find the new firmware please contact Billycarr11. Need that firmware to enable UHD for UD03. I've turned over every stone possible on the internet and yet to find the newest UD04 firmware. Did the UD04 come bare or did it come in a enclosed case? If in a enclosed case what brand is it?
cristi2077
Posts: 2
Joined: Tue May 12, 2026 10:30 am

Re: Pioneer UD04FAL

Post by cristi2077 »

It came bare but I'm use it with a generic sata slim to usb2.0 with y cable for extra juice.
Have not use it for ripping only for burning some blanks.
It behaved well on verbatim bd-re and ritek br2 but not so much on verbatim mdisc.
That is why I was looking for a newer firmware maybe with a better write strategy.
OneDay
Posts: 59
Joined: Wed Jun 10, 2020 12:01 am

Re: Pioneer UD04FAL

Post by OneDay »

Yeah trying to find the UD04 new firmware is like trying to find a Unicorn in the wild. There was site that did have the new firmware but the link no longer works. Hopefully someone might have it and share it here.
Billycar11
Posts: 5773
Joined: Sun Aug 24, 2014 5:49 am

Re: Pioneer UD04FAL

Post by Billycar11 »

We also need a ud03 12/22+ flasher
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
tomty89
Posts: 79
Joined: Sun Dec 13, 2020 8:48 am

Re: Pioneer UD04FAL

Post by tomty89 »

OneDay wrote:
Tue May 12, 2026 8:39 pm
If you find the new firmware please contact Billycarr11. Need that firmware to enable UHD for UD03. I've turned over every stone possible on the internet and yet to find the newest UD04 firmware. Did the UD04 come bare or did it come in a enclosed case? If in a enclosed case what brand is it?
So it sounds like you have bumped into a UD03 with 12/22+ firmware? What's the firmware version?

(Just curious. Not that I have any lead for the UD04 firmware. Sorry.)
OneDay
Posts: 59
Joined: Wed Jun 10, 2020 12:01 am

Re: Pioneer UD04FAL

Post by OneDay »

So it sounds like you have bumped into a UD03 with 12/22+ firmware? What's the firmware version?

(Just curious. Not that I have any lead for the UD04 firmware. Sorry.)
No, while Billycarr11 was helping me to unlock my 2022/22+ BDR-XD05W for UHD I happened to find the XD06 2022/22+ firmware to do so. At that time we were hoping to find the UD03/UD04 2022/22+ firmware but no luck. If I remember right there was member here that has the 12/22+ firmware on their UD03. The site is slow right now so its making it hard to find the forum it was on.
Last edited by OneDay on Wed May 13, 2026 10:09 pm, edited 1 time in total.
OneDay
Posts: 59
Joined: Wed Jun 10, 2020 12:01 am

Re: Pioneer UD04FAL

Post by OneDay »

PIONEER BD-RW BDR-UD03/UD04
Revision 1.14
Firmware data: 2020-06-15

Looks like so far from what I have found both UD03/UD04 have the same firmware rev. 1.14 2020-06-15. So Maybe the 12/22+ might have a rev. 1.15?
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