using thr play:5 as a standalone speaker using the line-in after upgrading to a Play 5

I presume they “bricked” it when I upgraded. Rather than toss it out I just started playing with it and cannot get S1 to recognize it. Does Sonos “help” help?

You may find that to create a new S1 Household with a Play:5 (gen1) you need to remove the S2 Controller App from your chosen mobile setup device first. 

So perhaps try this suggestion…

• Remove the S2 App.
• Install S1 App
• Factory reset just one of the Play:5 (gen1) devices.
• Open S1 App and create a new Household/System and install the Play:5
• Now add the second Play:5 (gen1) from factory-reset state from ‘Add Product’ in S1 App ‘Settings.System’.
• Reinstall S2 App, but on opening choose to connect to your "existing” S2 System - press the join button on one of the S2 Players when prompted and all should then be fine.

You should lose nothing by following the suggestion above, but you will have to reinstall your services and setup your S1 HH from scratch - your S2 system will simply remain as you have it setup at the moment.

Hope that works for you. 

Thanks Ken. Will try it later today and report back to the community. 

September 2020 is long after Sonos stopped bricking speakers in the trade up program.

Perhaps there is a right way/sequence of setting things up on upgrading so that the old speakers continue to work, that the OP may not have followed? He has a suggestion to explore, that may resolve the issue.

Ken, you are the best. Managed to get it working on one device. Having trouble on my iPhone but at least I know it works! 🙏🏼

If the iPhone is giving you issues, then perhaps give this a try... Goto the iPhone settings (grey cog icon). Goto the WiFi network connection that’s in use and select the small icon to see the properties of that connection and choose to switch off “Private Address” (MAC spoofing security feature) - it’s not actually required for home networks anyway - ignore any privacy warning.

The WiFi connection may disconnect but just simply reconnect the phone to the network and see if that then helps to prevent the issues you’re seeing.

Anyhow, glad to hear your speaker is now working - you can perhaps now choose to factory reset and hopefully be able add your ‘other’ Play:5 (gen1) via the ‘Add Product’ option in "Settings/System” of the S1 App.