Read these support guides:
If iTunes doesn't recognize your iPhone, iPad, or iPod - Apple Support
or
If the issue still persists, contact Apple Support (top-right of this page).
Regards
Giulio
Read these support guides:
If iTunes doesn't recognize your iPhone, iPad, or iPod - Apple Support
or
If the issue still persists, contact Apple Support (top-right of this page).
Regards
Giulio
iphone 7s locked with passcode