Make sure your Samsung TV and your phone, tablet, or computer are connected to the same Wi-Fi network
Turn on your Samsung TV
Open the source device’s screen mirroring or cast feature
On Samsung phones, swipe down to open Quick Settings and tap Smart View
On iPhone, open Control Center and tap Screen Mirroring
On Windows, press Windows + K or open the Cast/Connect option
Select your Samsung TV from the list of available devices
Enter the PIN on your device if prompted
Accept the connection on the TV if required
Start playing or using your device to mirror the screen
To stop mirroring, disconnect from the cast or mirroring menu on your device