Indeed, that, but there are more caveats. Of course this warning should also be in the web interface.
But first check point should IMO be: does this update involve a new Mosaic app update, or not? If no, start with the power cycling, etc. If yes, first update the Mosaic app before you carry on, and then start power cycling the unit. Don’t use the unit during the upgrade process, so do not play music through it, and do not connect to it through other apps, like Roon etc.
I would also add a YouTube movie, showing how to do it, with shots of the Mosaic app and/ or web interface, what is showing on the unit’s display, duration indications, how you do a power cycle (back button off - wait 2 minutes - on, etc.
Anyway, I would offer all means so that people really get the feeling they are in control of this process.
Actually Mosaic should have a warning saying not to update using the app - that seems to have caused me to have to power cycle reboot about four times.
Correct - that is why I leave the display on during playback…or upgrade
A display which would turn off after a certain period of inactivity would be nice however I would not hold my breath waiting for it.
I turn my dCS display off for reasons of longevity. On my Naim 552 preamp there is a way to toggle the display on and off. In this case it is for reasons of “slightly” enhanced sound quality (acknowledged by Naim) rather than issues of longevity.