manually downloaded 12.1.3 itunes and installed, ipad mini with 9.3.5 is seen by itunes but my iphone 6s with 10.2 is NOT. i have restarted both several times, changed usb ports and usb plugs with no change. My iphone cant be seen by itunes.

You need a newer version of iTunes to connect to an iPhone running iOS 10.2

Unfortunately 12.1.3 is 15 months old and newer versions of iTunes do not support Windows Vista, but you should be able to back up to iCloud. So this just happened when you updated the phone to iOS 10.2? Any error messages?

Try iOS device not showing in iTunes for Windows just in case, but it could well be that iOS 10.2 has been made incompatible with iTunes 12.1.3.6. It would be useful to know for others in the same situation.

tt2