iPhone update issue

Check if iTunes on your PC is up-to-date (current version is 12.12.10).

See also this support article about your problem:--> If your computer doesn't recognize your iPhone or iPad

Regards

Giulio

Okay.

If you already tried (to no avail) all the steps provided in the article I posted in my previous reply, I suggest that you contact Apple support directly, using this specific link:--> https://getsupport.apple.com/?caller=kbase

Regards

Giulio

I have the very same problem with iTunes on my 2007 El capitan iMac. I contacted Apple through the link

I was answered they have no information regarding this issue 🥴