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.

 

[not-my-real-name]

Plex Remote Access: You can now stream from your Plex media server over a wide-area network (remote connection).

This is something I've been looking forward to so I can setup the Wiim Amp and Wiim Amp Pro I gifted to my parents to access my large plex audio library (without resorting to installing tailscale on their networks). I really hope it works it's way down to these Wiim Amp devices. I thought it might be provided earlier by the "remote streaming over WAN" feature that was included in "WiiM Ultra Firmware v5.2.738432 Update - Dec 12, 2025" but that didn't seem to allow the Ultra to connect to Plex remotely (from a different network connected to the Internet).

I tested this with one of my Ultras that received 5.2.804553 and it's working as expected. Here's how I validated it:

1. Starting with my current configuration (two Ultras connected to the same local network as the Plex server)...
2. Set my locally wifi connected phone to share a tethered wifi connection
3. Configured the updated Ultra to change networks, connecting through the phone's tethered shared wifi connection
4. Disabled the phone's wifi so it lost local network access (losing the ability to reach the second Ultra but retaining connection to the updated Ultra because it was connected to my phone's wifi tether). This forced the updated Ultra to access my Plex server from the internet.
5. On the update Ultra (using the Wiim Connect phone app still), browsed to my Plex server and played a random playlist. This introduced slight latency to the browsing and skipping and song art loading but it was very acceptable and usable and worked very well for me.
6. I then verified that the non-updated Ultra could not do the same by repeating the above steps for it.

Over all I'm happy with this update but until it works its way down to the Wiim Amp/Wiim Amp Pro I'm still stuck sharing music via USB (not ideal since the random song size limit it very low) or building and installing tailscale on a Pi.

Thanks to the Wiim team for all of the updates.

 

[F1 Fan]

Has anybody got this update yet?

 

[Aquaman]

Nope.

 

[QuarryHunslet]

Has anybody got this update yet?

Yes, see the post directly above yours.

 

[not-my-real-name]

Has anybody got this update yet?

For one of my two Ultras, yes (still waiting on the other though).

 

[Mike in NY]

I got the update, however I don't remember what it used to look like previously. Here is what it looks like now:

 

[F1 Fan]

Its exactly the same



So the plot thickens..