Hoping to use Miracast technology to share the Huawei P8 screen to the Xbox One S, we went to the Huawei P8 Shortcuts menu and selected Multi-Screen. The Xbox One S was visible on the Huawei P8's Multi-screen window.
However, once we selected the Xbox, the Xbox One S oddly brought us to the Movies & Tv App which was listed as not currently available.
Needless to say, Miracast failed on the Xbox One S despite the Xbox receiving the latest updates and repeating attempts multiple times.