Ok, I had held off on reporting this (I did submit a support ticket a couple of hours ago, but no response on that front except the canned auto acknowledge). Here is the TLDR version: C-7 out of the box today as migration target for my C-5. The current firmware at unboxing was 2.2.3.119, did that update fine, then to the Z-Wave Radio update. Disaster. Firmware Updater hung on Getting Device Versions (waited 1/2 hour; not the expected 10 min.). Tried everything (Shutdown, power off for 30 seconds, etc.), no luck. Any further attempts to update the radio gave brief "failed to start" message, then Getting Device Versions hang for 1/2 hour. Reset Z-Wave Radio failed (well, it was a new hub, nothing paired), so not even that helped. A clue was that there was nothing in the Z-Wave Devices table, not even the C-7 at node 1. Clean shutdown again, power off 30 seconds. Then 2.2.3.132 came out, did that update with its reboot. This time the Z-Wave Radio reset worked and the Z-Wave Devices table showed the single entry at node 1 (the hub). Tried Z-Wave Radio firmware update again, now it said firmware already up to date. Sigh. I just put this out in case others have the problem. The way to spot is nothing in the Z-Wave Devices table. Unfortunately, for those who have already paired devices, the cure involved Z-Wave Radio reset.
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