I'll note here that if you normally connect via https then you need to make sure that you change to use http in your URL as well.
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Hydro311,
I'll second or third the thanks. The procedure was completely clear and flawless for several of my Leviton DZ6HD devices. Thanks for taking the time to document it.
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I’m new to Hubitat. How do I know what version of firmware my installed Leviton devices have?
Welcome! From the "Devices" listing, select the device -- the firmware is usually ID'd near the bottom of the page in the Data section.
But it may be listed near the top of the page in the State Variables section (I'm not sure why some there and other's in the other).
A newly-added device may not populate that info immediately - depending on mains-vs-battery, you can usually use refresh/wake commands to coax it up. Or just wait a day -- it'll show up eventually.
Thanks, but I’m not seeing that information in either place. It’s a Leviton DZ6HD dimmer, if that helps. It’s a few years old, so I’m sure it could use an update :). Maybe that’s part of the problem…
You can download and install the driver Super basic Z-Wave parameter tool.
You would then change the device driver to this one and click on "Get Version Report". The current firmware version would be listed in the logs.
This driver is meant to allow changing device parameters. See also Basic Z-Wave Tool driver - best practices for more information.
Dont forget to change back to your original driver when you are finished.
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Okay now that I’ve learned how to install HPM and use the Z-wave updater, I noticed it can query the version. And I successfully updated the firmware and now it shows the version with the regular driver. I guess that was indeed an issue with the old firmware itself.
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Glad to hear you got it updated! The built-in ZW firmware updater works well for quite a few common brands (Zooz, Aeotec etc) and is easier to use overall, but having familiarity with this older updater can come in handy once in a while (like for Leviton here!)
Hopefully Leviton will continue to add more firmware updates in the future.
Thanks for this post with instructions on how to update the firmware. It was very helpful!
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@hydro311 ...I just got around to updating the firmware on one of my Leviton DZ15S switches. Actually, I put it off because I was scared to update the firmware. 
I used your procedure on my new C-8 and it updated the firmware without a problem. It didn't take long and I didn't brick the switch....lt actually worked....Yey!
I may even update the firmware on several other DZ15S switches, but not right now...I am just going to celebrate my success.
Thank you for the write-up of the procedure.
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Thanks for posting - glad to hear this still works on the C8, since someone posted earlier this week they were beta testing some Leviton firmware that will hopefully post sometime soon.
It would be great if Leviton could package the f/w so we could just use our built-in updater, but at least we have this workaround.
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Thanks for this wonderful step by step instruction set. It worked great for me. First hiccup was using HTTPS instead of HTTP. Second hangup was solved by factory resetting my switch and repeating the installation. Worked for both the Leviton DZ6HD and the DZ15S on my C8 hub.
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I have several of the DZ6HD dimmers and using the DZ6HD_v1_22.ota file I used this guide to try and update my devices from version 1.20. The download to the device would start and reach 100% but the update would fail for not enough memory. My hub is a C7 with the latest firmware. I was able to update my DZ6HD using the Leviton OTA update software and a Zooz S2 Stick 700.
I have run in to the same insufficient memory issue when trying using my C7 hub. Thanks for letting me know the Zooz stick works.
Hoping for some assistance on a updating a few DZ6HD & DZPD3 devices. Running 1.13 firmware - trying to update to get current as the response can occasionally be laggy. I have tried updating a few different devices - the devices appear to complete the process and I see the line "New image was successfully stored in temporary non-volatile memory. The device will now start storing the new image in primary non-volatile memory dedicated to executable code. Then the device will restart itself." in the device log however when I complete the process and check the FW version it still reflects 1.13.
I do notice in the log " firmwareUpgradable:false" in the line below. Can anyone opine if this the cause of my problems?
FirmwareMDReport: FirmwareMdReport(manufacturerId:29, firmwareId:257, checksum:42276, firmwareUpgradable:false, numberOfTargets:null, maxFragmentSize:null, firmwareIds:[]).
In the log? Or at the bottom of the device page? Some drivers are bad at updating the firmware version on the device page.
The upgradable false seems to be normal, all the Zooz devices report this also but can be upgraded.
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The firmware version I am citing is from the logs. I get the same result using "get version report" of the Z-Wave Firmware Updater and the Basic Z-wave tool.
I successfully flashed a DZ15s. (There are 2 drivers for Leviton, but only one works with the Dz15s) Setting it back to the original driver, I can now see the current firmware. I am trying to clear the firmware update status, which still shows completed. But neither the Configure, Poll, or Refresh buttons do this.... So my question is...What will clear the firmware update status???
Switch driver/type to "Device", then use the available options to "Delete All Current States" and "Delete All States", then go back to regular driver/type.
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Ah!! Fabulous! Thanks Muchly!
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