How To: Update your Dimmer Switch Firmware | Hubitat

How To: Update your Dimmer Switch Firmware | Hubitat


Please proceed at your own risk. Bricked switches due to user error will not be replaced nor refunded. If you'd like to mail in your switch to have us do it for you, we're happy to do so.
Updating the firmware is a fairly safe & fool proof procedure with Z-Wave. Please double check you are updating the correct device with the appropriate model number. Do not interrupt power to the device while the update is taking place.
The .otz file is the Z-Wave Chip Upgrade that is Target 0 in the Hubitat Z-Wave Firmware Updater.
The Holtek .bin file is the LED bar MCU firmware and is Target 1 in the Hubitat Z-Wave Firmware Updater.

Summary 

In this tutorial, we'll walk you through how to update your Black or Red Series Dimmer switch to the latest firmware using the Hubitat OTA Firmware Update Tool.
 


Pre-Requisites

Please work on the pre-requisites prior to updating your firmware. You will need to install the OTA Firmware Update Tool (Binary Version) as well as have the URL for the latest Dimmer Switch firmware.
  1. Device Driver: Binary Firmware Update Tool  (right click this URL and copy the URL -- you will need this for later)
  2. (The file in the root folder is the stock firmware -- files in the, "Beta" folder are the latest stable firmware files. The higher the number, the newer the file) 
Remember: you'll need to flash both the .otz and .bin files. Please check the following table below for which .otz goes with what .bin file.

LZW31 (Black Series)
.OTZ (Target 0) - Z-Wave Chip
LZW31 (Black Series)
.BIN (Target 1) - Holtek MCU
LZW31-SN (Red Series)
.OTZ (Target 0) - Z-Wave Chip
LZW31-SN (Red Series)
.BIN (Target 1) - Holtek MCU
1.35
1.34
1.35
1.35
1.41
1.36
1.41
1.36
1.42
1.37
1.42
1.37
1.43
1.38
1.43
1.38
1.44
1.39
1.44
1.39
1.45
1.40
1.45
1.40
1.47
1.41
1.47
1.41
             >>    1.48 (Production)
              >>    1.41 (Production)
             >>    1.48 (Production)
             >>    1.41 (Production)
           1.51 (Beta)
1.41
           1.51 (Beta)
1.41
           1.52 (Beta)
           1.43 (Beta)
           1.52 (Beta)
           1.43 (Beta)

For the change-logs of each, please see the following pages:
  1. LZW31 - Dimmer Switch (Black Series)
  2. LZW31-SN - Dimmer Switch (Red Series)


Installing the Driver

In your Hubitat Elevation, navigate to the Drivers Code Section.



Click on New Driver.



Click Import.



Paste the Z-Wave Firmware Updater Tool URL (up above in the "Pre-Requisites" section) in the box and click Import.  It will ask if you want to override the current code.  Click ok.



Once the code loads in the driver box, click save.



Navigate back to your Drivers Code page and you will see the new driver listed.  (Probably at the bottom of the list since it starts with Z.)




Updating the Firmware

Now that we have the driver installed, it's time to update the firmware.

Go to your devices and select your Dimmer switch, scroll down to the, "Device Information" section and select, "Z-Wave Firmware Updater" -- click, "Save Device".


Now, go to the top and where it says, "Update Firmware" and paste in the URL for the first firmware file (should be .otz) and set the Target to 0. 

Again, the target should be 0. Now click on, "Update Firmware" and the firmware should start to update. It may take 5-10 minutes. Once you see it get to 100%, it should be done. Now, we'll flash the .bin file.

Click on the .bin file URL from the, "Pre-Requisites" section and grab the hyperlink. Then as you did in the prior step, paste the URL in the, "binaryFirmwareURL" section and set the, "firmwareTarget" to 1. Press, "Update Firmware" and let the device update.

Once completed, scroll down to the, "Device Information" section and click on the, "Type" dropdown and select the proper driver for your dimmer switch. Click, "Save Device" and you should be all set!

Sometimes the correct firmware doesn't show up at the top right of the screen after you've finished updating the firmware. If this is the case, please click, "Save Preferences" after you've switched back to the correct Driver. The firmware version should now reflect the correct one.

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