Make sure the laptop and Smart TV are connected to the same Wi-Fi network
Turn on the Smart TV and enable screen mirroring, cast, or wireless display mode
On Windows, press Windows + K or open the Action Center and select Cast
Choose the Smart TV from the list of available devices
On Mac, open Control Center and select Screen Mirroring
Choose the Smart TV from the list of available devices
If using Chrome, open the browser menu and select Cast
Select the Smart TV and choose whether to cast the tab, desktop, or file
If prompted, enter the pairing code shown on the TV
Adjust display settings on the laptop if needed
Disconnect by stopping cast or screen mirroring from the laptop or TV