WiiM Ultra Firmware v5.2.804553 Update - Jan 14, 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.

5.2.804553 (In Progress)​

Release date:

Jan 14, 2026

What’s New:

1. Plex Remote Access: You can now stream from your Plex media server over a wide-area network (remote connection).
2. Localization: Added German language support for the device screen.

User Experience & Interface:

1. Faster Setup: Optimized the Wi-Fi onboarding flow for reduced setup time. Added a "Cancel" option and clearer device name display during the process.
2. Screen Enhancements:
   • Volume Feedback: The screen now wakes to show the volume bar when adjusting volume, even if the display was off.
   • Responsiveness: Fixed a display delay when switching inputs via the remote.
   • Source Switching: Improved the switching speed when changing between different audio inputs.

Audio & Stability:

1. Streaming Stability:
   • TIDAL Connect: Fixed an issue causing random playback stops.
   • Amazon Music: Resolved an issue where playback occasionally failed to start.
   • TuneIn: Fixed playback issues specific to NPR podcasts.
2. System Performance:
   • USB Library: Fixed a potential memory issue (OOM) during large library scanning for better stability.
   • DAC Settings: Refined the logic for default DAC filter selection.
   • Alarms: Fixed a bug where alarm presets would not stop playing after the set duration ended.

 

[Mr Ee]

if removing the power from the WiiM Ultra overnight could stop the automatic update

(My bolding)
I've had wiims auto update during the day despite the 2am - 5am timeframe sometimes mentioned here.

 

[adias]

Thanks for the info.
The version listed is from the build date of 20251218.
I wanted to see if removing the power from the WiiM Ultra overnight could stop the automatic update, but also allow bypassing a particular update that caused issues until a patch was released.
It would appear that you can, as a patch was issued on the newer FW. I still haven't updated yet. I will probably wait until the next FW update is released ( just to make sure).

I saw the version and did not read the post. Yes of course if the unit is powered off updates or anything else do not work. But why would one do that? YMMV.

 

[Ronnie D]

I've had wiims auto update during the day despite the 2am - 5am timeframe sometimes mentioned here.

Yes, I am aware of that. I just tried to avoid this update as some were having issues with plex and I wanted to see if I could avoid the update as my WiiM is off during the night anyway. I was trying to see if I could avoid the initial update, but pick up the patch that came out a few days later .