TS3694 Unable to restore iPhone 5

Trying to get my iPhone 5 working again, during attempts to restore, keep getting:

Clicking "More Information" open a web page with a list of things to check, like updating to latest version of software, etc.  All done.  Rebooted MacBook, no diff.  If that "(9)" is the error message referred to in the web page, it says it's a USB error.  Tried three different USB ports and two different cables, no diff.

Any ideas?

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Tom