Dev mode & auto-reload

I’m new with expo and trying to get the dev mode & auto-reload to work. I tried the initial tutorial and published my project and can see it in the expo client, but can’t get dev mode & auto-reload to work. I tried the suggestions in the documentation as far as enabling dev mode from the dev tools and also the CLI, with no luck. Only when I re-publish do I see my changes in the expo client on my device (iPhone 7, IOS 12.1). And regardless of what the “Production” toggle is set to, it never goes into dev mode. Does anybody have any other suggestions?