This firmware update is being rolled out in stages, with devices updating sequentially over the next few days.

It's important to note that the device's firmware version is distinct from the WiiM Home App version. To check your device's firmware version, open the WiiM Home App, go to the 'Device' tab, tap the 'gear icon (Cog Wheel)' for device settings, select 'Device Info', and then view 'Firmware Version'.


5.2.723250 (Latest)


Release date:

     7 / 15 / 2025


What's New:


  1. Roon Ready Certified: Seamless bit-perfect streaming from Roon.

    Tip: if Amp Ultra doesn’t appear in Roon after updating, simply restart the Roon app.

  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.