Well, yes and no. The controller is DOA. Not sure if it was the update or just a coincidence, but it very reliably won't put out an SSID or radio signal (Soloink network), although looking at the lights you would think it was, and I also still can't reset it, so don't know if it is hardware or software. I have seen it where new software excercises the hardware in ways it normally doesn't (like writing to EEE proms) and so it could be a hardware problem that showed up due to software.
The better news is that somewhere last night I recalled that 3DR actually has 24 hr service now. I called their support number and had a guy on the phone in a couple minutes (at 1:00 AM my time). We went through the usual stuff based on the symptoms, but he quickly figured out I had tried a LOT, most of it several times, and he just started asking if I had done this and that, and how..
Pretty quickly we got to the point where I made the case that with no WiFi, if there was no alternate method of resetting the controller other than that prescribed, even if it was software, I would need to replace it. They were very interested in the fact that I had just done the update also, and even though they haven't seen this elsewhere, I think they were a little keen on seeing the controller anyway. He wanted an engineer to look at it in the AM, but agreed.
So... I talked to an engineer this morning, made the logical case, and got an RMA, a label and FedEx picked it up a few hours ago. 3DR told me they will cross ship a controller to me, rather than make me wait for a repair. I haven't recieved a shipping notice yet, so it may end up going out to me onTuesday (Monday is a holiday here) though I don't know that for sure.
I haven't decided on moving the Gimble from the other Solo or pairing my other controller to the gimbaled Solo, and will decide that later. It is raining here anyway, so it may not matter either way.