iOS14 upgrade and iTunes 12.8.2.3 can no longer see iPhone to backup or sync

Posting this to help anyone who has an issue after upgrading an iPhone and subsequently cannot get iTunes on a Mac to see the phone for syncing and backing up. Found the solution was to reinstall iTunes atop the existing copy, allow the installer to also install the 'update needed' for the iPhone, then wait minutes for the install to complete.

This answer for someone who had the issue with iOS 13 solves this for me:

[quote]

I had the same problem, with iTunes 12.8.2.3 (running on macOS 10.13.6) and iOS 14.0.

First, I went through the steps listed at If your computer doesn't recognize your iPhone, iPad, or iPod - Apple Support . That didn't fix the problem, but I felt it was important to try those things first before calling in for assitance.

Then, I called Apple Support. After some research, the person I spoke with said to go to Download iTunes 12.8.2 for Mac and install this slightly older version.

I did. While the installer was running, it downloaded additional updates, as did iTunes 12.8.2 itself when I launched it. I then ended up with a re-updated version of 12.8.2.3 that was able to see my iPhone.

This completely fixed the problem for me.

[/quote]

Hope this helps someone else still running older and fully functional macs with OS 10.13. My iPhone is the original SE, btw. Still kicking, both.