See this How-To - follow the steps to get the PC Controller app (part of a larger suite) and then you can use it w/a UZB stick to do your FW udpates.
You can use pretty much any UZB stick - like these:
- https://www.amazon.com/Aeotec-Z-Stick-Z-Wave-create-gateway/dp/B00X0AWA6E
- https://www.amazon.com/Z-Wave-Stick-Assistant-HomeSeer-Software/dp/B07GNZ56BK
Download the Ghost Removal guide from the thread below. You're not going to remove ghosts, but info in that guide is useful in getting ready to update device FW:
Follow steps 1-14 in the Ghost Removal guide to pair your stick to your hub.
Then complete the steps below to do the firmware update on your device(s):
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Select the device that you want to update, let's say it's device 21 (a dimmer switch). (You can find the device number of your Z-Wave devices on the Z-Wave Details page, match up the device number there w/the device numbers shown in the PC Controller app):
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Select the OTA firmware update button:
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Select the Get button to load details of your device:
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Select the folder icon to browse to and choose the firmware update file
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Select the target device in the Firmware Targets section
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Select the Update button
The FW update should start, and you'll get a success message in green at the bottom of the screen when the FW update completes successfully. You can then reload device info w/the GET button to see the new FW version.
It could help to do a full shut down and restart of your hub before doing the OTA FW update...
- Shut down hub from Settings menu - wait for red light on hub
- Pull power at wall (plug on hub can be fragile
- Wait 2-3 minutes
- Plug in and wait until reboots and green LED/hub comes back up
