Please click Open System Preference, then click the lock icon on the left-down coner and check the Omi Mirror App. When you click the start mirroring button at first time, there may be a popup Screen Recording window on your Mac (above MacOS 10.15 Catalina ). You can also install the omi mirror for roku channel manually in Roku channel store Alow record screen permission When you click the start mirroring button at first time, there will be a popup window in Roku device to remind you install the roku client channel which will receive the images send from your Mac. Take mirror for roku as an example image *This Step is just for Roku TV button in target device block if you have more than one.Once the TV detected, you can change selected device by clicking the Take mirror for roku as an example image Start Mirror If none devices was found, please check Here Once starting up, the app will scanning the devices which under the same network with you Mac, and select one automatically. When you open the Omi Mirror App, you can open / close the main UI panel by clicking the top-right status bar.
Before read that, please install the Omi Mirror app in Mac Appstore. Here is the steps to mirror your mac screen or video files to your Chromecast/Roku/Smart TV (Samsung TV etc.). Tutorial about Omi Mirror for Chromecast/Roku/Smart TV (Samsung TV etc.)
