[C202/C202N] Home Assistant - ZHA firmware issue

[C202/C202N] Home Assistant - ZHA firmware issue



Please note these instructions are currently for ZHA only.
If your date code is 20230828 you do not need to do this update.
The most up to date firmwares have Date Codes: 20230828 or 20240813. 
The most up to date sw build id is 1.04  for 20230828, and 1.20 for 20240813.

Please note you should not attempt this update unless your batch # and date code indicate compatibility in the table below.
  1. It has come to our attention that a small batch of our zigbee rotary dimmers are not performing as expected with Home Assistant when using ZHA.
  2. If you have recently purchased a rotary dimmer and are having problems with Home Assistant ZHA (the light toggle does not stay on, or the device appears in HA to toggle off/on occasionally), you may be able to update the firmware on the device.
  3. If your device is batch 7 or 8, and date code 20230401 please contact us to arrange a repair or replacement.

Firmware Update


To check whether your device is compatible with the firmware update, you will need to check the firmware date code of your switch, and also the “#” number on the back of the switch.

Once you have these 2 numbers, please check this table to confirm whether your device is compatible with the below firmware update.


# Number
Firmware Date Code
Compatibility
1-6
All
Not compatible
7
20220531
Compatible
7
20230401
Not compatible
8
20220531
Compatible
8
20230318
Compatible
8
20230401
Not compatible
9
20230401
Compatible
Any
20230824
Compatible

If your device is compatible you can download the firmware and instructions below.

New features

This firmware update brings new features and improved stability to your Candeo C202 rotary dimmers.

On Level:

  • Compatible with ZHA only.
  • Allows you to set a predetermined level at which the lights come on, when using smart controls.
  • Not applicable for physical interaction. i.e. On Level setting is ignored if you use the knob on the switch.
  • To continue to use the last setting (the brightness level at which the lights were turned off), set to 255.

Start Up Behaviour (or Power On Behaviour):

  • Compatible with ZHA and zigbee2mqtt.
  • Allows you to set the behaviour in the event of a power restore e.g. After a power cut.
  • Available settings: On, Off, Previous Value.

Start Up Current Level:

  • Allows you to set the level at which the lights come on in the event of a power restore – if using “On” in Start Up Behaviour.
  • Set to 255 for Previous Value.
20230828 and 20240813 firmwares add Start Up behaviour functionality to zigbee2mqtt as well as ZHA.