I’ve tried several of this model of dongle and the behavior was the same on each, so presumably “switching radios” would mean switching to a different brand. Is the NVM really inter-compatible between different models/brands of radio? (I.e., can I backup NVM from this Zooz and then restore it to some other brand of Z-wave controller?)
A while ago I had tried to restore NVM from a ZST-39 to a ZAC93 (both 800LR), and it didn’t work. If I recall, the error said something about different NVM sizes…
At the moment, my only hope is that magically the 1.4 firmware for the ZST39 gets released and actually solves this problem…
Zooz emailed me a few days ago, new firmware had been released for the ZAC93 that “testing it has resolved 99% of the reported lockup issues.” Looks like ZST39 has an update, too.
Now if only I can update the firmware without bricking the zst39. (I tried doing an upgrade previously via OTW in home assistant and it bricked it. Zooz support said I should only update using the Silicon Labs software, but neglected to mention that that requires a windows PC (which I do not have).) I guess I have to roll the dice?