[C-ZB-RD1 Family] Firmware Update Instructions

[C-ZB-RD1 Family] Firmware Update Instructions

Candeo Dimmer Front Candeo Dimmer Side

Firmware Updates

Candeo RD1 & RD1-Pro Firmware Update Instructions

The firmware update is performed directly from a compatible iOS or Android device using Bluetooth.

Before you begin

Before updating your dimmer:

  • Remove or unpair the RD1 / RD1-Pro from your Zigbee hub or coordinator.
  • Factory reset the dimmer with 4 short presses followed by a long 5th press. This returns the device to DIM mode, which is required for the firmware update.
  • Make sure Bluetooth is enabled on your phone or tablet.
  • Keep your phone close to the dimmer throughout the update.

    ⚠ Warning ⚠

    Do not disconnect power from the dimmer while a firmware update is in progress.

    ⚠ Warning ⚠

The update consists of two separate stages:

  1. MCU firmware
  2. Zigbee firmware

⚠ Warning ⚠

Important: Always update the MCU firmware first.

After both updates are complete, the dimmer should be power cycled and factory reset again before being paired back to your Zigbee system.

⚠ Warning ⚠

Phase 1: Install the OTA Upgrade app [Click to Expand ▾]
  1. Install the OTA Upgrade app on your phone or tablet:
  2. Turn on Bluetooth and allow the app to use Bluetooth if requested.
  3. Open the OTA Upgrade app and select Get started.
    img1
    Click to enlarge
Phase 2: Put the dimmer into OTA mode [Click to Expand ▾]

On the RD1 or RD1-Pro:

  1. Press the rotary knob 11 times with short presses.
  2. On the 12th press, press and hold the knob.

The LED behind the rotary knob should illuminate yellow/green to indicate that the dimmer is in OTA update mode.

If necessary, the rotary knob can be removed to make the LED easier to see.

Do not remove the wall plate or expose any wiring.

Phase 3: Find the dimmer in the app [Click to Expand ▾]

1.In the OTA Upgrade app, select Search.

  1. The app will display Searching...
  2. If the dimmer is not found, the app will display Device not found. If this happens, put the dimmer into OTA mode again and repeat the search.
  3. Once the dimmer has been found, select Select.
    img5
    Click to enlarge
  4. The app will display the currently installed MCU and Zigbee firmware versions.
    img6
    Click to enlarge
Phase 4: Update the MCU firmware [Click to Expand ▾]

⚠ Warning ⚠

When the MCU update is complete DO NOT SELECT UPGRADE AGAIN. COMPLETELY CLOSE THE APP, INCLUDING CLEARING IT FROM RUNNING IN THE BACKGROUND.  

⚠ Warning ⚠

The MCU firmware must be updated first.
  1. Select Upgrade MCU.
    1. If no compatible update is available, the app will display No update.
  2. If an update is available, the available firmware version will be shown.
    img8
    Click to enlarge
  3. Check that the screen says Select MCU OTA.
  4. Select the radio button next to the latest available firmware version and select OK.
    1. RD1 - MCU Version V1.2.6
    2. RD1P - MCU Version V2.0.0
  5. The MCU firmware update will begin.
    img9
    Click to enlarge
  6. Do not operate the dimmer or disconnect power while the update is in progress.
  7. The MCU update is normally completed quite quickly.

⚠ Warning ⚠

When the MCU update is complete DO NOT SELECT UPGRADE AGAIN. COMPLETELY CLOSE THE APP, INCLUDING CLEARING IT FROM RUNNING IN THE BACKGROUND.  

⚠ Warning ⚠

Phase 5: Update the Zigbee firmware [Click to Expand ▾]
  1. Reopen the OTA Upgrade app.
  2. Put the dimmer into OTA mode again:
    1. Press the rotary knob 11 times with short presses.
    2. On the 12th press, press and hold the knob.
    3. The LED behind the rotary knob should again illuminate yellow/green.
  3. Select Search.
  4. Once the dimmer has been found, select Select.
    1. The current firmware information should now show the newly updated MCU firmware.
  5. Select Upgrade Zigbee.
    1. If no compatible update is available, the app will display No update.
    2. If an update is available, check that the screen says Select Zigbee OTA.
  6. Select the radio button next to the latest available firmware version and select OK.

    1. RD1 - Zigbee FW version V1.3.1

    2. RD1P - Zigbee FW version V2.0.0 (OTA version 22)

  7. The Zigbee firmware update will begin.
    img14
    Click to enlarge
  8. Do not operate the dimmer, close the app or disconnect power while the update is in progress.
  9. The Zigbee firmware normally takes longer to update than the MCU firmware and may take several minutes.
  10. When the update has completed, select OK.
  11. The app may then display a notice offering the option to Upgrade Again.
  12. Do not select Upgrade Again. Instead, completely close the OTA Upgrade app.
Phase 6: (Optional) Confirm the update [Click to Expand ▾]

If you would like to confirm that both firmware updates were installed successfully:

  1. Reopen the OTA Upgrade app.
  2. Put the dimmer into OTA mode again using 11 short presses followed by a long 12th press.
  3. Select Search.
  4. Select the dimmer.
  5. Check the MCU and Zigbee firmware versions displayed by the app.
    img15
    Click to enlarge
    1. Both should now show the latest available firmware versions for your device.
Phase 7: Reset and reconnect the dimmer [Click to Expand ▾]

Once both firmware updates are complete:

  1. Power cycle the dimmer.
  2. Factory reset the dimmer again with 4 short presses followed by a long 5th press.
  3. Make sure your Zigbee platform and any required Candeo device drivers or integrations are up to date. See below for further details and specific instructions for Zigbee2MQTT, Home Assistant ZHA, SmartThings, and Hubitat.
  4. Pair the RD1 or RD1-Pro back to your Zigbee system.
  5. Reconfigure any required settings, bindings or automations.

For platform-specific instructions, see:

  • Zigbee2MQTT
  • Home Assistant ZHA
  • SmartThings
  • Hubitat
Phase 8: Troubleshooting [Click to Expand ▾]
The OTA Upgrade app cannot find my dimmer [Click to Expand ▾]

Make sure:

  • Bluetooth is enabled on your phone or tablet.
  • The OTA Upgrade app has permission to use Bluetooth.
  • Your phone is close to the dimmer.
  • The dimmer has been factory reset before starting the update.
  • The dimmer is in DIM mode.
  • You have correctly entered OTA mode using 11 short presses followed by a long 12th press.
  • The LED behind the rotary knob is showing yellow/green.

If Device not found is displayed, put the dimmer into OTA mode again and repeat the search.

The app says “No update” [Click to Expand ▾]

This means that no newer compatible firmware is currently being offered for the firmware component you selected.

Remember that the MCU and Zigbee firmware are updated separately.

Check that you have selected the correct option:

  • Upgrade MCU for the MCU firmware
  • Upgrade Zigbee for the Zigbee firmware
The update appears to have finished but the dimmer is not working correctly [Click to Expand ▾]

After completing both firmware updates:

  1. Power cycle the dimmer.
  2. Factory reset it.
  3. Ensure your Zigbee platform and Candeo device support are up to date.
  4. Pair the dimmer again.

Do not restore the dimmer to your Zigbee network without performing the final factory reset.