"NY"  writes:

> Any suggestions? Is it some sort of incompatibility between an image
> that is said to be good for RP2 and RP3, and my RP3 B+?

Possibly. At least when I recently popped a working SD card from a Pi 3
and tried to boot it in a 3B+ it didn't boot. I grabbed a Raspbian image
and went with that instead.

--- SoupGate-Win32 v1.05