WiiM Ultra Firmware v5.2.725647 Update - Aug 8, 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.

5.2.725647 (In Progress)​

Release date:

8 / 8 / 2025

What's New:

1. Room Correction & EQ Integration: Room Correction and EQ now work together to provide an optimized listening experience. Learn More
2. Stabilized Wi-Fi Connection: Enhanced connection reliability, especially for mesh network environments.
3. Screen Enhancements:
   • Corrected highlight behavior for Local Radio and Recently Played.
   • Expanded the tap area for easier Preset selection.
   • Ensured full display of Presets and Recently Played content.
4. Amazon Music: Bitrate information is now displayed when streaming Amazon Music Prime.
5. Sub Pro Intergartion: Improved pairing experience and overall functionality when using the Sub Pro.

Bug Fixes:

1. Alarm Fixes:
   • Resolved an issue where weekly alarms occasionally failed to trigger.
   • Fixed a bug where only the default tone played for Pandora alarm.
2. Dolby Audio Fixes:
   • Fixed no-sound issues when playing Dolby audio in multiroom setups.
   • Corrected volume balance behavior for Dolby audio.
3. USB Indexing Fix: Corrected garbled character display for Chinese.
4. USB Output Fixes:
   • Resolved no-sound issues after reconnecting a USB DAC device when using Google Cast, TIDAL Connect, Spotify Connect, or Qobuz Connect.
   • Fixed audio stuttering when playing at 44.1kHz or 48kHz sample rates.
5. Playing Status: Corrected the playback status indicator when no music is playing.
6. Qobuz: Now displays the correct artist name in the app during playback.

 

[harkpabst]

Does it mean that as of now it is not possible to link different RoomFit profiles to particular outputs (via Preset or otherwise?) - if that was the case it would be quite strange omission that would a sort of undermine the entire concept - in my setup (playing to different set of speakers via different outputs) I would still need to use EQ rather than RoomFit... Can I at least turn RoomFit off for particular outputs?

You can use smart presents to make link outputs to EQ profiles.

I didn't check yet if and how presets have been updated to reflect the new independent RoomFit and EQ settings, admittedly.

 

[Wiimer]

Does it mean that as of now it is not possible to link different RoomFit profiles to particular outputs (via Preset or otherwise?) - if that was the case it would be quite strange omission that would a sort of undermine the entire concept - in my setup (playing to different set of speakers via different outputs) I would still need to use EQ rather than RoomFit... Can I at least turn RoomFit off for particular outputs?

@DariuszP, @Smartplug,

My Ultra's FW has been downgraded, so the presets have not been tested.

From the release notes, there is no indication that any functionality has been added to the presets, so I don't think a dedicated selection section for RoomFit profiles has been added. (i.e. it is not possible to specify an EQ for input and a profile for output at the same time).

In the beta version, I guess you could select RoomFit profiles in the presets, but to be honest I can't remember for sure. If this is possible, you could disable the profile in the preset or select a different profile for each output. Also, in that case, it is possible to use it in conjunction with the per-input EQ settings.
(All this is unconfirmed.)


Edit:
According to the team's response here, they will be able to apply separate RoomFit profiles for speakers and headphones.