WiiM Ultra Firmware v5.2.736552 Update - Nov 24, 2025

Saponetto · Nov 27, 2025

Rather than this spectral debate, I'd ask for a simple display add-on, an immediate switch to make Ultra to work as a "pure transport", bit-perfect mode via USB or Optical.

Better if exportable to all Wiim devices.

QuarryHunslet · Nov 27, 2025

Saponetto said:
Rather than this spectral debate, I'd ask for a simple display add-on, an immediate switch to make Ultra to work as a "pure transport", bit-perfect mode via USB or Optical.

Better if exportable to all Wiim devices.

So this would immediately bypass all EQ, and RoomFit settings, that sounds good to me, but it would also need to apply to Coaxial Output.

Mr Ee · Nov 27, 2025

Saponetto said:
switch to make Ultra to work as a "pure transport", bit-perfect mode

This was requested, and discussed, many, many, many months ago.

Back in the good old days there were literally just a few options to revert to bit perfect. You could even just enable the MQA beta toggle for it

Now there are a zillion options. Some call it progress

iirc, Wiim commented that it could / would be implemented. Don't think they said when...

Burnside · Nov 27, 2025

Mr Ee said:
This was requested, and discussed, many, many, many months ago.
Back in the good old days there were literally just a few options to revert to bit perfect. You could even just enable the MQA beta toggle for it
Now there are a zillion options. Some call it progress

iirc, Wiim commented that it could / would be implemented. Don't think they said when...

"In two weeks"

HakanC · Nov 27, 2025

I received the update yesterday evening (CET)
I am enjoying the addition of the spectrum analyzer.
Another fine update by WiiM

kryst · Nov 27, 2025

It would be great if I could put a USB pendrive on it and select it from the touch screen. It would be nice to solve this somehow

By the way, is there a difference in sound quality between firmwares?

Burnside · Nov 28, 2025

kryst said:
By the way, is there a difference in sound quality between firmwares?

In general no unless WiiM have expressly said so, or unless a bug crept in…

canard · Nov 28, 2025

WiiM Team said:
Please review the WiiM Ultra update release notes below. If you encounter any issues, feel free to reach out to us. This firmware update is being rolled out in stages, with devices updating sequentially over the next few days.

5.2.736552 (In Progress)
Release date:
11 / 24 / 2025

What's New:

Now Playing: Added Audio Spectrum visualization. Requires WiiM Home app v3.4.0+.

Queue: Better track order retention in shuffle and faster queue operations across NAS/USB/Samba/Local, TIDAL, Qobuz, Radio Paradise, YouTube, Deezer, and SoundCloud.

Multi room: Improved multicast logic for more reliable discovery/connectivity; reduced stutter when using Bluetooth input.

Bug Fixes:

Google Cast: Device now retains its assigned room after reboot.

Spotify Presets: Start on first press (no second trigger needed).

Playback Stability: Fixes for TuneIn Radio and certain FLAC files.

USB Library: Resolved missing albums when indexing large collections.

USB Out: Playback now auto resumes.

Screen/UI: Fixed overlay artifacts and occasional failures to load Now Playing or Standby screens.

VU Meter: Restored operation with Dolby audio in multi room playback.

What firmware updates are coming soon, "via trickle-down," to products other than the Ultra?
The "lower-end" models? No screen etc...
Will these updates affect streaming functions, or are they purely audio-related?
Thank you

CliffyBC · Nov 29, 2025

canard said:
What firmware updates are coming soon, "via trickle-down," to products other than the Ultra?
The "lower-end" models? No screen etc...
Will these updates affect streaming functions, or are they purely audio-related?
Thank you

You should be glad that you ain't getting all these firmware updates, I received one yesterday which killed my Plex connection stone dead. NO documentation that I can see anywhere on Wiim's forum but if anyone has a working Plex server, avoid this one.

sippan · Nov 29, 2025

will the api be able to load and play from m3u playlists soon? as the manual says it can do but it cant.. as of know it only loads the first song

harkpabst · Nov 29, 2025

CliffyBC said:
... I received one yesterday which killed my Plex connection stone dead. NO documentation that I can see anywhere on Wiim's forum but if anyone has a working Plex server, avoid this one.

Given that this was a general issue, how should concerned Plex users tell from your posting which firmware to avoid?

CliffyBC · Nov 29, 2025

harkpabst said:
Given that this was a general issue, how should concerned Plex users tell.crom your posting which firmware to avoid?

Sorry, I was so p*ssed off by this, I forgot to put the details.
Firmware.... 5.2.736859
BUILD DATE.. 20251127
I cannot find any details regarding this update, maybe someone else has some ideas?
Everything was working perfectly for me, then I allowed myself to be tempted and allowed this update to be installed.
Doh, I never learn.

QuarryHunslet · Nov 29, 2025

CliffyBC said:
Sorry, I was so p*ssed off by this, I forgot to put the details.
Firmware.... 5.2.736859
BUILD DATE.. 20251127
I cannot find any details regarding this update, maybe someone else has some ideas?
Everything was working perfectly for me, then I allowed myself to be tempted and allowed this update to be installed.
Doh, I never learn.

I shall look forward to receiving this update if it is an official release, and not a beta version.

wisniauk · Nov 29, 2025

Hi everyone
Yesterday I reorganise my hi fi setup
I connect a external denafrips R2R DAC via coaxial output from my Wiim Ultra

Software update done too

I started listening and immediately I heard something is wrong with my subwoofer
I guess LPF filter works differently on new software or coax and sub out have some issue
Anyone noticed similar problem?
I connect DAC via optical connection to wiim ultra and problem gone, subwoofer sound correctly now, same like before when I using internal dac in ultra

bever70 · Nov 29, 2025

CliffyBC said:
Sorry, I was so p*ssed off by this, I forgot to put the details.
Firmware.... 5.2.736859
BUILD DATE.. 20251127
I cannot find any details regarding this update, maybe someone else has some ideas?
Everything was working perfectly for me, then I allowed myself to be tempted and allowed this update to be installed.
Doh, I never learn.

What update is that? No mention of it here? 736552 is the latest afaik. Plex working perfect as always...

Wiimer · Nov 29, 2025

wisniauk said:
Hi everyone
Yesterday I reorganise my hi fi setup
I connect a external denafrips R2R DAC via coaxial output from my Wiim Ultra

Software update done too

I started listening and immediately I heard something is wrong with my subwoofer
I guess LPF filter works differently on new software or coax and sub out have some issue
Anyone noticed similar problem?
I connect DAC via optical connection to wiim ultra and problem gone, subwoofer sound correctly now, same like before when I using internal dac in ultra

Hi
Please unplug the Ultra's power cable and wait a while before reconnecting it. If the issue does not solve, submitting a ticket via the WiiM app's feedback section.
(Other > Feedback)

Device logs will be sent, which will assist in resolving the issue.

QuarryHunslet · Nov 29, 2025

wisniauk said:
Hi everyone
Yesterday I reorganise my hi fi setup
I connect a external denafrips R2R DAC via coaxial output from my Wiim Ultra

Software update done too

I started listening and immediately I heard something is wrong with my subwoofer
I guess LPF filter works differently on new software or coax and sub out have some issue
Anyone noticed similar problem?
I connect DAC via optical connection to wiim ultra and problem gone, subwoofer sound correctly now, same like before when I using internal dac in ultra

I am using Coaxial Output from my Ultra, and my subwoofer seems to be working just as well as usual, and no different since this firmware update.

wisniauk · Nov 29, 2025

Hello again
Luckily problem gone
I unplugged wiim ultra, waiting about 2min, reconnect coax and power cable and now subwoofer works as usual, but really yesterday it was really bad sounds like bug frequency in LPF filter and I immediately heard that because I'm listening my music every day for good few hours and know my system really well

Thanks for your help guys, now my wiim ultra + R2R DAC sounds fantastic, is different league of sounding

Saponetto · Nov 30, 2025

So, my Ultra got its update.
Curiously, and first time I see after an update, it started to heavily stutter... Nothing serious, already saw it happen after some Pro+ updates.
As usual, I did a factory reset and, as expected, the nasty stutter went totally gone. Yay.

Unfortunately, I had to face an unpredictable problem:
Both Tidal and Qobuz services no longer showing their dialog page for login (Userid & Password) on WHA for Android, Ver. 3.4.0.

Tried everything as I could, power cycles, clear and uninstall WHA for Android, reinstalling it, rebooting the phone, unsuccessfully.

Luckily, I was later able to regain login on Qobuz through the Music Services page of WHA for Windows, Ver. 0.2.3.
Sadly, Tidal login is still out of my reach, being it currently not yet implemented on WHA for Windows.

Had to open a ticket (548610) and I'm now eagerly waiting for an helpful answer.

Pikouchou · Dec 1, 2025

Hi,
Nice job with spectrum meter but I think that display smoothness is CPU power dépendant :

Low bit rate playback ==> smooth display

High bit rate playback ==> rough display

It's the same for VU meter .....

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