I need to know if what I was told by a Sonos support person is true before I blow up. Is it true that if you downgrade a Sonos One SL Series 2 to Series 1 and then upgrade it back to Series 2, you cannot downgrade it again to Series 1?
My brother asked me to help him add a series 2 speaker to his mixed series 1 and 2 system. When atttempting to I fired up the Series 2 app to downgrade the speaker after reseting it to factory settings. Green light flashing. The Sonos app said “you have to uograde before continuing”. Hit the upgrade button and it upgraded all of his speakers possible to Series 2. Well when trying downgrade them back and get this thing going, it would recognize the speakers as available to downgrade. Support said “Oh, once you downgrade once you can’;t do it again. I have made my brother’s system a mess if this is the case…. Thoughts?