USB or Wi-Fi connection?
You are, of course, looking in the Finder sidebar? You have configured Finder
Sidebar preferences to include iOS devices?
Try rebooting both Mac and iPhone. Sometimes that shakes out some gremlin or
other that's keeping sync from working.
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The following information
Bingo. Finder settings, sidebar. Apple is sneaky for I never had the
cd/dvd option checked so did not let Voiceover announce the full label.
There it is, iOS devices tacked on the end of that option. Thanks for
the nudge.
From E.T.'s Keyboard...
You catch more flies with honey than with vin