Amazon launched Fire OS update 6.2.6.3 this week for its Fire TV Stick 4K. The brand new model started rolling out to units yesterday, although the replace didn't specify any features or changes that it was bringing. Now that customers have had time to discover the replace, one big addition is apparent: the arrival of support for Miracast screen mirroring. The Miracast commonplace is used for display mirroring, enabling users to simply challenge their device display on their Tv or monitor. Amazon determined to vary that and introduced Miracast to the most recent version of its Fire Flixy TV Stick Stick. The '4K' mannequin, as its identify suggests, helps Ultra HD shows