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

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:

1. Now Playing: Added Audio Spectrum visualization. Requires WiiM Home app v3.4.0+.
2. Queue: Better track order retention in shuffle and faster queue operations across NAS/USB/Samba/Local, TIDAL, Qobuz, Radio Paradise, YouTube, Deezer, and SoundCloud.
3. Multi room: Improved multicast logic for more reliable discovery/connectivity; reduced stutter when using Bluetooth input.

Bug Fixes:

1. Google Cast: Device now retains its assigned room after reboot.
2. Spotify Presets: Start on first press (no second trigger needed).
3. Playback Stability: Fixes for TuneIn Radio and certain FLAC files.
4. USB Library: Resolved missing albums when indexing large collections.
5. USB Out: Playback now auto resumes.
6. Screen/UI: Fixed overlay artifacts and occasional failures to load Now Playing or Standby screens.
7. VU Meter: Restored operation with Dolby audio in multi room playback.

 

[canard]

Post in thread 'WiiM Ultra Firmware v5.2.736552 Update - Nov 24, 2025' https://forum.wiimhome.com/threads/...-2-736552-update-nov-24-2025.8596/post-159236

 

[WiiM Team]

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 .....

Hi @Pikouchou ,

Thanks very much for your feedback. We will check this promptly.

 

[Mr Ee]

Low bit rate playback ==> smooth display

The vast majority of music I listen to is 'CD' quality, and it's still so jerky / unnatural that I've gone back to the standard album art screen.
Shame really.

 

[adias]

The vast majority of music I listen to is 'CD' quality, and it's still so jerky / unnatural that I've gone back to the standard album art screen.
Shame really.

This is proof that screens can interfere with the audio pipeline. Even when optimized (i.e., fixing/mitigating this latest glitch) extra drivers and processing create EMI. A screen-less top tier streamer is missing in the WiiM product line

 

[bever70]

An issue popped up since this latest update. My line in connection goes crazy all the time. Sound drops in and out from the line in and I get pop ups all the time on the WHA. (Line in connected/Line in disconnected...).
Sent feedback ticket.
They moved me back to firmware 733343. Got a suggestion to do factory reset, reseat cables, unplug wiim....did all that (even tried another pair of cables that work fine on other gear) but to no avail. The problem persists and I can't use my line in anymore.

 

[Maurizio]

Regarding the Spectrum Analyzer.
I don't know if anyone noticed this, but the SA representation is completely wrong, unless I'm doing something wrong.
I compared the same track with the SA of the Topping, and the results are completely different.
While the Topping representation is perfectly consistent with the rhythm of the music, the Ultra's seems to be completely random.
It has nothing to do with what's being played.
I tried the album Trinity by Iiro Rantala, song "There is No Greater Love." The track opens with predominantly bass notes, and in the Topping they are visible. In the Ultra, however, they seem absent.
The same happens in the rest of the track. In the Topping, the movement is mainly on the left side, descending towards the right.
In the Ultra, the left side is at its lowest, there's a wall in the center, and the right side is extremely high.
Sorry, I don't know how to rotate the video
View attachment Spectrum Analyzer Ultra vs Topping.mp4

 

[HoosierHiFi]

Regarding the Spectrum Analyzer.
I don't know if anyone noticed this, but the SA representation is completely wrong, unless I'm doing something wrong.
I compared the same track with the SA of the Topping, and the results are completely different.
While the Topping representation is perfectly consistent with the rhythm of the music, the Ultra's seems to be completely random.
It has nothing to do with what's being played.
I tried the album Trinity by Iiro Rantala, song "There is No Greater Love." The track opens with predominantly bass notes, and in the Topping they are visible. In the Ultra, however, they seem absent.
The same happens in the rest of the track. In the Topping, the movement is mainly on the left side, descending towards the right.
In the Ultra, the left side is at its lowest, there's a wall in the center, and the right side is extremely high.
Sorry, I don't know how to rotate the video
View attachment 30330

I ageee with this analysis. I have RME and topping DAC’s and when viewed side by side I have also noriced the WiiM’s spectrum analyzer lacks responsiveness to the beat of the music. It’s really noticeable when playing reggae with heavy bass lines.

 

[Maurizio]

I forgot one thing. Always compared to the Topping, the Ultra's SA is extremely slow. It lacks dynamics.

 

[Saponetto]

With the available system resources, I suppose this is the best this device can do...

 

[JAB]

This is catch-22. As long as there is no more powerful hardware (I am not talking about sound quality!) this is one of the features what remains a gimmick.