The issue is resolved.
Somehow - and it's a mystery how - the one speaker got updated to DOS 2. I know for a fact that I didn't do it, as I didn't even have the Devialet app installed. The buyer may have somehow done it by accident, but I don't see how that's possible to be honest. Anyway, doesn't matter now it's resolved.
Once the Phantom is on DOS 2, the reset is a long press instead of three short presses. I knew that, but I wasn't physically with the speakers anymore.
So what can I say - when it works it's great, but when it doesn't it's kind of a problem that the system is so opaque. It would rock to have some sort of diagnostics besides the app (which is very high level) and the sound/vibration cues from the speakers (which are hard to memorize, and changed with DOS 2 anyway).
Somehow - and it's a mystery how - the one speaker got updated to DOS 2. I know for a fact that I didn't do it, as I didn't even have the Devialet app installed. The buyer may have somehow done it by accident, but I don't see how that's possible to be honest. Anyway, doesn't matter now it's resolved.
Once the Phantom is on DOS 2, the reset is a long press instead of three short presses. I knew that, but I wasn't physically with the speakers anymore.
So what can I say - when it works it's great, but when it doesn't it's kind of a problem that the system is so opaque. It would rock to have some sort of diagnostics besides the app (which is very high level) and the sound/vibration cues from the speakers (which are hard to memorize, and changed with DOS 2 anyway).