White Series Fan Switch Firmware Changelog | VTM35-SN

V1.0.1r1 (beta) - Jun 3, 2026

Please reach out via PM if you are interested in testing

General Updates

  • Added a combo button action to configure the power type:
    • Neutral Mode: Hold the Up button and tap the Config button 11 times β†’ LED turns Yellow
    • Non-Neutral Mode: Hold the Down button and tap the Config button 11 times β†’ LED turns Green
  • Removed the combo button configuration options for:
    • Aux switch mode (Hold Up + Config 5x)
    • Single-pole mode (Hold Up + Config 6x)

Endpoint & Cluster Changes

  • Removed the Mode Selection cluster from endpoints EP1–EP9.
  • Removed the private cluster from EP1.
  • Added endpoints EP20–EP29 with the device type set to Mode Select. These endpoints include:
    • Descriptor Cluster
    • Mode Select Cluster

Firmware Updates

  • Upgraded the protocol stack to Matter 1.5.0.
  • Automatic neutral detection is no longer supported. The default configuration is Neutral Mode.
  • To manually change the power type:
    • Hold Up + press Config 11 times β†’ Set to Neutral Mode
      Hold Down + press Config 11 times β†’ Set to Non-Neutral Mode
      High-speed mode is not supported in non-neutral installations. If the switch is configured for Neutral Mode with high-speed mode enabled in a non-neutral setup, the switch may repeatedly reset. If this occurs four consecutive times, the switch will automatically change its power type setting to Non-Neutral Mode.

Will this address the no response issues in Homekit? My dimmer switches have been rock solid after the latest update but the few fan switches I have need air gap resets every few weeks on a random basis.

Haven’t had one fall off the thread network since I installed the beta.

1 Like

I’ll play with it.

Yes, it will likely improve network reliability. It is running off of Matter 1.5 (newest released version) which includes many, many, under-the-hood improvements.