WiiM Ultra Firmware v5.2.723250 Update - Jul 15, 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.

5.2.723250 (In Progress)​

Release date:

7 / 15 / 2025

What's New:

1. Smart DNS Enhancement: Improved Smart DNS behavior by checking the legitimacy of the DNS server returned by the router.
2. HDMI ARC Upgrade:
   • Eliminated pop/crackle noises.
   • Added Auto-Sensing for instant TV-audio pickup.
   • Improved the stability of ARC connections.
3. Advanced Parametric EQ: High-Pass & Low-Pass filters now available (App v3.2.6+ required).
4. Deezer: "Play Next / Play Last" options added.
5. Bluetooth: Adjustable latency for perfectly synced audio.

Bug Fixes:

1. Soundtrack Pairing: Fixed an issue preventing successful soundtrack pairing.
2. Gapless Playback: Fixed an issue causing incomplete audio playback.
3. USB Indexing: Corrected the extraction of PNG format covers from MP3 files and fixed a crash issue that caused playback to stop.
4. Qobuz Connect: Fixed an issue where playback would automatically resume after pausing when using USB output.
5. Phono Input: Resolved a no-sound issue when editing input mode via the app.

​

 

[EddNog]

I wonder if the ARC upgrade helps me with the lip sync issue I have. I connected my TV to my Ultra with both, RCA and ARC, and I get a quote back lip sync problem with ARC that completely goes away when I use the analog input. The problem is I lose ARC volume control when I use RCA, so ideally they fix the ARC lip sync issue.

-Ed

 

[Smartplug]

I’m wondering if this advanced peq can be used on rc.

 

[hgo58]

I wonder if the ARC upgrade helps me with the lip sync issue I have. I connected my TV to my Ultra with both, RCA and ARC, and I get a quote back lip sync problem with ARC that completely goes away when I use the analog input. The problem is I lose ARC volume control when I use RCA, so ideally they fix the ARC lip sync issue.

-Ed

I also wonder if this ARC upgrade fix the issue with the WiiM highjacking my TV sound even with all HDMI CEC ARC options turned off?

 

[Joseespona]

Still no independent RC/EQ

 

[Teflon490]

What does it mean "legitimacy" of the DNS server?

 

[artishard116]

Wasn't HDMI auto sensing already a feature?

 

[harkpabst]

Wasn't HDMI auto sensing already a feature?

Optical auto sensing and HDMI auto sensing can now be enabled or disabled individually. This is a novelty.

Previously, HDMI auto sensing used to be tied to optical auto sensing, but as of late, it's been removed (relying on CEC functionality, only).

 

[F1 Fan]

Still haven’t got it ..

 

[QuarryHunslet]

Still haven’t got it ..

Most people haven't got it yet.

 

[Skull]

Nor have I but nothing in it for me so not bothered

 

[Saponetto]

Ah, the voluptuous moment you realize an update is knocking on the door of your Ultra...
(already told, Ultra gets too many updates.)

 

[Smartplug]

As more people buy ultra the longer it takes to get update. It takes time for their server to update all ultra connected online. The new amp ultra gets update fast as it doesn’t have many online yet.

 

[Wiimer]

My Ultra received this yesterday

 

[Wiimer]

Oh, I mistook it for Amp Ultra; Ultra is not yet.
Sorry..