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Home > Zooz Light Switches > ZEN21 On/Off Light Switch > ZEN21 On Off Switch Change Log
ZEN21 On Off Switch Change Log

Here are the updates and improvements we made to the ZEN21 switch model so far.

VER. 1.0 (released 6/2016)

Original release.
Hardware:

  • Included screwless wall plate
  • Did NOT include neutral jumper
  • Did NOT include 3-way functionality (single pole only)

Firmware: 20.16

  • No advanced settings available

VER. 2.0 (released 6/2017)

Hardware:

  • Removed wall plate
  • Added neutral jumper
  • Added Direct 3-way solution
  • Added logo on paddle

Firmware: 20.15

  • Added advanced settings for paddle control and LED indicator mode

VER. 2.01 (released 12/2017)

Hardware:

  • Removed logo from paddle

Firmware: 20.15

  • Added a setting to enable/disable LED indicator
  • Added communication signaling from LED indicator (blinks when in inclusion/exclusion mode)

VER. 2.02 (released 10/2018)

Firmware: 20.15

  • Added a setting to control status after power failure

VER. 3.0 (released 3/2019)

Hardware:

  • Updated back cover for easier installation (larger terminal holes)
  • Added foam to packaging

Firmware: 3.0

  • Changed association settings to send separate reports for manual and Z-Wave control
  • Added S2 security
  • Added the ability to switch between LED modes with 6 quick clicks
  • Added Built-in Timer
  • Added the ability to reset the switch to factory settings from the device directly
  • Added the ability to control load by pressing any of the paddles
  • Added OTA firmware updates

VER. 3.01

Hardware:

  • Made the LED indicator smaller
  • Terminal screws arrive loose (unscrewed) for easier installation

Firmware: 3.01

  • Added scene control
  • Added the ability to disable physical control

VER. 3.02

Firmware: 3.02

  • Reduced manual control delay related to scene control functionality

VER. 3.03

Firmware: 3.03

  • Added the ability to disable Z-Wave control together with physical control
  • Added on/off reports to the hub and LED indicator status changes with disabled physical / Z-Wave control

VER. 3.04

Firmware: 3.04

  • Added the ability to adjust reporting behavior for disabled physical control
  • Added 3-way switch type setting to use momentary switches (like the ZAC99) in 3-way, 4-way, or 5-way set-ups without configuration limitations

VER. 4.0 (released 9/2020)

Hardware:

  • Removed side heat sink tabs

Firmware: 4.0

  • Changed the paddle sequence for enabling smart bulb mode (aka disabling the relay / physical control) to 4-down-and-hold for 10 seconds (tap the lower paddle down-down-down-down'n'hold)

VER. 4.01 (released 10/2020 as OTA)

Firmware: 4.01

  • Corrected the reporting behavior for smart bulb mode with physical and Z-Wave control disabled
  • Changed power outage behavior in smart bulb mode
  • Applied timers to status reports in smart bulb mode
  • Improved single-tap and long-tap timing for scene control triggers

 

If you have version 3.0 or higher, you can update the switch via OTA firmware updates, you can request a firmware update file here, don't forget to include your order number for verification!

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