Why isn’t the link to instal iOS 14.0 highlighted so I can install the new release on my 6S iPhone!
How do I activate it so I can install iOS 14.0?
Areyou sure that your model is a 6s? (I'm asking you since model 6 cannot support iOS versions beyond 12.4.8, because of hardware incompatibility).
Should be a 6s, read this article:--> Update your iPhone, iPad, or iPod touch – Apple Support
and/or this one:--> Updating iOS: common issues and solutions - Apple Community
If the issue persists, please better specify what happens when you try to update your iPhone.
Regards
Giulio