WiiM Ultra Firmware v5.2.813259 - Apr 8, 2026

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.

5.2.813259 (In Progress)​

Release date:

Apr 8, 2026

Highlights:

1. Sub & Main Speaker Sync: Automatically aligns subwoofer and main speakers for improved timing at the listening position.
2. Per-Input Screen Control: Enable or disable the screen display for each input mode.
3. Headphone EQ: Added independent EQ for headphone output optimization.
4. Standby Source Mode: Automatically switch to a selected input when entering standby, enabling instant playback.
5. Spotify Smart Play: Resume your latest listening session with a single tap.
6. Surround Setup: Simplified setup with full backward compatibility. (requires upcoming app update).

Screen:

1. Playback Screen: Added a vinyl-style playback screen for a more immersive experience.
2. Localization: Added French language support.

Playback & Audio:

1. Playback Latency: Reduced delay when starting playback.
2. EQ: Improved responsiveness when adjusting and switching EQ settings.
3. Line In: Fixed distortion during extended playback sessions.
4. Bass Output: Fixed low bass levels for Apple TV (Dolby 5.1).
5. Audio Sync: Improved sync accuracy at microsecond level for better group playback (requires upcoming app update).

Radio & Streaming Services:

1. TIDAL Connect: Upgraded SDK to resolve unexpected playback interruptions.
2. Soundtrack: Updated SDK for improved playback stability and performance.
3. TuneIn: Fixed playback issues for certain stations and improved resume behavior after long pauses.
4. Deezer: Fixed unexpected playback interruptions.

General Improvements:

1. Wi-Fi: Improved network stability and enhanced compatibility with Wi-Fi 7 routers.
2. HDMI ARC: Disabling automatic audio output now correctly keeps WiiM in standby and defaults to the TV speakers.
3. HTTP Server: Improved concurrency and stability under high load.
4. Audio Input: Fixed playback crash issues.
5. Remote: Fixed occasional disconnection and unexpected max volume issues.
6. Alarm: Fixed incorrect alarm and preset volume behavior.
7. Roon: Fixed occasional crash issues.
8. EQ: Enables EQ for Dolby 5.1 playback.
9. Alarm: Fixes BBC and vTuner alarms defaulting to the chime.
10. Spectrum Display: Improves dynamic visualization.
11. Qobuz Connect: Fixed occasional playback stopping issues.

 

[BMeek]

Have you hidden inputs other than Wi-Fi and HDMI? If so, please display the "Optical-in". Then, change the standby mode source to "Optical-in."

When you play music via Wi-Fi, the Ultra input will automatically switch to Wi-Fi.

I had also eliminated all input options but HDMI and Ethernet/WiFi. Like @Ultra1224, I mainly source music from the HDMI-connected Apple TV 4K. It was a challenge trying to implement this Standby Screen on HDMI workaround because I kept looking to edit the list of visible inputs under device settings under "Audio Input" before resorting to documentation and finding the editable list of inputs again under the "Browse" Tab.

Anyway, I did as you suggested. When I manually put the system in standby by 'turning off' the Apple TV 4K, the HDMI playback screen (I'm set to the warm spectrum analyzer that goes well with my power amp's VU meter simulation), remains for some time... I started this response before the (now still) HDMI EQ meter screen switched to my chosen Clock 'standby screen' to behave as advertised and almost as @Ultra1224 desires. Sadly, when I set the screen off for HDMI playback, and turn off the system via HDMI CEC using the ATV4K remote, the switch to Optical and the Standby Clock screen never lights up (in standby). Good Tip nonetheless!

Right now I'm fighting a separate HDMI-related issue (#562148 eventual stuttering on HDMI input). By briefly switching audio input to Ethernet and back to HDMI, the audio stream resets and eliminates the stutter - until it happens again. Now, this other HDMI-workaround sorta adds another input toggle button press to my first HDMI-workaround.

 

[hgo58]

To summarize, I want the Ulta to automatically detect inputs on startup, and when I’m done watching TV, I want the unit to go into standby and display the clock. While I’m watching TV, I want the display to be off.

Thanks for the help.

The current implementation of the "Screen settings" to disable the display ("Screen Display") is unfortunately flawed and illogical. There are workarounds but they are not logical either.

The correct implementation would have been to have a blank display as one of the playback screens. I have raised this to @WiiM Support (#561377). You should do the same.

 

[BMeek]

The current implementation of the "Screen settings" to disable the display ("Screen Display") is unfortunately flawed and illogical. There are workarounds but they are not logical either.

The correct implementation would have been to have a blank display as one of the playback screens. I have raised this to @WiiM Support (#561377). You should do the same.

Always best to 'keep it simple!'. The bla[n|c]k screen display option is such an easy solution to the 'screen off while playing' feature request... hopefully the now-oddly-tweaked-screen-related UI can get cleaned up too (but not as a gating item to releasing the 'blank screen' option(s)).

 

[Wiimer]

Sadly, when I set the screen off for HDMI playback, and turn off the system via HDMI CEC using the ATV4K remote, the switch to Optical and the Standby Clock screen never lights up (in standby). Good Tip nonetheless!

It worked when I checked it, but I might have made a mistake somewhere...

If the Ultra's auto-standby is set to 30 seconds, I believe the Ultra's input will switch to "Optical" in about 3 minutes once the TV stops outputting an audio signal.

Please try leaving the TV on and waiting for about 3 minutes without any sound. The Ultra's input should switch to "Optical," and the clock should appear 1 minute later.

Once the Ultra’s input switches to Optical, please turn off the TV.