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White Series Fan Switch • Firmware Changelog

This article will go through the changelog for the White Series Fan Switch (VTM35-SN)

Written by Kaleb

DISCLAIMER: You may notice there are a lot of over-used keywords or phrases as well as English that seems a little off. This is because these articles are used to feed our AI Robot (Ira) and she needs the data to be structured in a certain way.

Current Production Version: 1.0.0

Current Beta Version: 1.0.1r2

Development Status: Open

NOTE: Beta firmware is considered unstable - please update at your own risk

Firmware Changelog

Below is the changelog for the White Series Fan Switch (VTM35-SN).

NOTES:

  • Rows highlighted in blue are production firmware versions

  • Parameters that are hyperlinked lead to the official White Series Fan Switch • Parameters page for further explanation.

  • In the, "Firmware Version" column, you can find the date code which will tell you what firmware version your switch was produced with. Date codes can be found on the top left of your switch

Firmware

Version

Date

Released

Enhancements Added

Bug Fixes

Notes

1.0.1r2

Beta

June 8, 2026

Add Thread Diagnostic Cluster on EP0.

Add TagList attribute to the Descriptor Cluster from EP3 to EP5.

Modify the IdentifyType attribute value of the Identify Cluster from EP2 to EP6 to 0.

Add endpoint 26 to the PartsList attribute of the Descriptor Cluster on EP1.

Fix an issue where Breeze Mode was not functioning properly.

1.0.1r1

Beta

June 3, 2026

Added a combo button action to configure the power type:

  • Neutral Mode: Hold the Up button and tap the Config button 11 times → LED turns Yellow

  • Non-Neutral Mode: Hold the Down button and tap the Config button 11 times → LED turns Green

Removed the combo button configuration options for:

  • Aux switch mode (Hold Up + Config 5x)

  • Single-pole mode (Hold Up + Config 6x)

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

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 → Set to Neutral Mode
    Hold Down + press Config 11 times → 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.

IMPORTANT: NOTICE

1.0.0

Production

Date Codes:

2505

Initial Release


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