I have a new one, right out of the box, but most of the sensors paired are either completely non-functional, or throwing tamper errors. I’m trying to get rid of these so I can at least get some basic functionality.
It looks like settings code 1111 got me into installer mode. It was pretty easy after that.
Not positive but I think the root cause may have been that the QR scanned sensors had the source set wrong. Now I see I could have changed it without removing them, but oh well. Re-added with source as s-line and all seems to be working now.