Sonos One downgrade

According to all I have read rolling back the upgrade to S2 is not possible.

Who are you mad with?

There is no user accessible method to downgrade anything Sonos.

Maybe ‘central control’ at Sonos HQ can do it,  but convincing them to do it will be a task-and-a-half.

According to reading, I should have been able to reset my Sonos Ones to factory setting and that would have allowed me to read to an S1 controller.  The good news...after additional reading, I was able to get all of my devices to the S2 controller so no more issues with seamless streaming.  YAY!!!

Very curious where you might have read that downgrading is possible - I’ve always read it is not possible. Do you have a link?

@mertoncm regarding “downgrading”: i have been able to move a device that had been upgraded to S2 over to an existing S1 system:  playbase upgraded to S2, factory reset, open S1 controller app with existing S1 device(s), add device with “add product.” 

i can’t tell from what you’ve described if your S1 controller app is joined to an existing S1 system or not.  if it isn’t then that will be your problem as i’m sure Sonos won’t want users to setup completely new S1 systems using devices that have been upgraded to S2.

if you do have an existing S1 system and it won’t let you add the device it might be worth resetting the S1 app and connecting it to the system again and see if that clears up the issue.

I got the update message today, and I did not consider that it might put my existing system into an inconsistent state. If I had written the specification I’d make sure there was a pretty big warning that you’re going to break existing functionality if you accept the update on a mixed legacy/modern network.

Back to resetting Play:1 and Play:3 speakers so they’ll play nice with my gen 1 Connects. It can be done, but I figure I’m done updating my Sonos system.

Installed Sonos on new Windows 10 PC and selected the Sonos S2 App on PC (without thinking and without any warning as to consequences - after all Sonos always just worked and I forgot all about the tech behind it - that was one of the biggest selling points) - I then connected my first Play:1 bluenote - and I did the usual system update.

Then I connected my old Play:5 and that’s when I realised my mistake...!

I removed the S2 App and installed the S1 App - Play:5 works and my other Play:1 bluenote works no problem - but the original that got upgraded by the S2 App is now not compatible and installing the S1 and S2 Apps on Phones and PCs (really!) just ends up in some catch-22 of complaints about incompatibility however I try it.

I’m now down a speaker...how do I get the old Play:1 back to to S1 OS - I’ve tried the factory reset (holding down of play/pause and + as you plug in) and it seems to remain on the S2 OS and is now incompatible.

Unless I am missing something obvious, this is a total mess, I know I’m behind the initial wave, but the tsunami will come when those users who, like me, forgot about the tech because Sonos was so good, begin to ‘upgrade’.

Help?

Try this:

Factory reset the device you want on S1, turn off all other Sonos devices, then run the S1 mobile app and set up a new system. That should put the S1 firmware onto the device. I think.

Thanks for the response Controlav,

Although I had previously tried your suggestion, I had another go at the Sonos today just to double check.

Something was different this time around - all the devices needed to be re-registered again, message saying they were previously part of another Sonos setup - and all of them then went on and behaved as expected.  Unless something was done centrally to my account I cannot understand what exactly changed.   

But all are now back working on S1 and my Play:1’s and Play:5 are pals again - one day I’ll get over the shock of the near obsolescence threat, something will make saying goodbye to the Play:5 worthwhile, and I’ll buy another Sonos product.

Thanks again - and sorry I cannot be much help to anyone trying to downgrade from S2 to S1 - all I can say it is definitely possible for a Play:1.