So I suspect if you can get the z-wave firmware updated it will solve a lot of the issues. I feel like thats when mine stopped locking up as well.
HUB.IP/hub/zwaveDetails/json
Check the 'pretty-print' box if your browser has it and look for 'isRadioUpdateNeeded'
I think thats what determines if the button shows up or not, so I think it will be false. It is odd that yours is not showing.
Here is my fully updated C7
/hub/zwaveVersion
VersionReport(zWaveLibraryType:7, zWaveProtocolVersion:7, zWaveProtocolSubVersion:18, firmware0Version:7, firmware0SubVersion:18, hardwareVersion:1, firmwareTargets:1, targetVersions:[[target:1, version:7, subVersion:18]])
OK, so what to try next. I would try downgrading the ZIP Gateway which is needed to do the update anyway. Maybe it will get the button to show.
HUB.IP/hub/advanced/installZipgateway715
Run that and let it spin, when it is done run it again until you get the message that it is already installed. Sometimes it takes a couple of tries for some reason.
Then do a hub shut down and unplug for 30 seconds. Boot back up and see if the Firmware Update button has shown up yet.
