Turn on your Smart TV and phone
Connect both devices to the same Wi-Fi network
Open the screen mirroring, cast, or wireless display option on your TV
On Android, open Quick Settings and tap Cast, Smart View, or Screen Cast
On iPhone, open Control Center and tap Screen Mirroring
Select your Smart TV from the list of available devices
Enter the pairing code if prompted
Allow the connection on your TV if required
To use a cable, connect your phone to the TV with the correct adapter and HDMI cable
Change the TV input to the matching HDMI port
Confirm the phone display appears on the TV
Disconnect by turning off casting or screen mirroring on your phone