I just bought an Icon from Amazon a few weeks ago and love the phone! However, since I bought it, I have been missing the Hey Cortana option in settings. I didn't think much of it at first because I planned to update from 8.1 to 10 and hoped the feature would be readded. However, I updated yesterday and am still missing the Hey Cortana option. Both my language and region are we to US/English. Any ideas? Thanks.