I had 2 play:3s using S2 and ditched the bridge when I updated to S2 (years ago). One of my play 3:s died. I tossed it and purchased a used play 3 on ebay. Just received it, plugged it in and went to the app to add it but it never finds it. The white light flashes for about a minute and then goes solid. Some help I found online says to factory reset it by pressing and holding the button while plugging it in. I tried that but that did not change the behavior. While light flashes then goes solid. Don't know what to do. Please help!
Question
Adding used play:3 to existing system
From what you say, the factory reset is not completing successfully.
Are you holding the Play/Pause button when reconnecting power? The button should be held until the led starts flashing orange and white. The app should then find the speaker once the led flashes green. Also try holding Play/Pause and Volume + buttons if previous method does not work.
The 2nd hand Play:3 may also still be running S1 firmware. If you use the S1 app, does it find the speaker?
Also try connecting the Play:3 by ethernet to your router for initial setup.
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