Make sure your Roku device and phone, tablet, or computer are connected to the same Wi-Fi network
On your Roku, go to Settings
Select System
Select Screen mirroring
Choose Screen mirroring mode
Select Prompt or Always allow
On Android, open Quick Settings and tap Cast, Screen Cast, or Smart View
Select your Roku device from the list
On Windows, press Windows key + K
Select your Roku device from the list
On iPhone or iPad, use the Roku app or a compatible AirPlay-enabled Roku model
On Mac, use AirPlay if your Roku model supports it
Open the app or content you want to mirror
Start playback or begin screen mirroring from your device
If prompted on Roku, allow the connection
To stop mirroring, disconnect from the casting or AirPlay menu on your device