Learn how to use AllShare cast on Samsung Galaxy S3. You can connect your Samsung Galaxy S3 to a large screen by using an AllShare Cast dongle, and then share your contents. This feature may be unavailable depending on your region or service provider. Some files may be buffered while playing depending on the network connection. To save energy, deactivate the AllShare Cast feature when not in use. If you specify a Wi-Fi frequency band, AllShare Cast dongles may not be found or connected. If you play videos or games on a TV, select an appropriate TV mode to get the best experience from AllShare Cast.
How to connect your Samsung Galaxy S3 to a large screen
In the application list, select Settings, More settings, and then AllShare Cast. If you add the AllShare Cast widget to the Home screen, you can access this feature conveniently.
Drag the AllShare Cast switch to the right.
Select a device. When the devices are connected, you can see your device’s display on the other’s display.
Open or play a file.
Control the display with the keys on your device.