Screen mirroring on the Samsung Galaxy S4

With the "Screen Mirroring" function of the Galaxy S4, you can use your mobile phone to play videos on TV, for example. To use this feature, you need either an HDMI adapter or the Samsung gadget AllShare Cast.

Wired connection: Samsung HDMI adapter

The S4's micro USB port is an MHL port that enables HD video and 7.1 surround sound to be output. With a "Samsung HDMI Adapter" you can connect your TV to the S4 (and even charge it at the same time) via an HDMI cable. Finally, all you have to do is set your TV to the connected HDMI port and start playback on the cell phone.

Wireless connection: Samsung's AllShare Cast

If you don't feel like a cable mess or you want to use screen mirroring from the couch, you can use Samsung's WiFi dongle AllShare Cast. Connect this to one of the HDMI inputs on your TV, similar to an HDMI cable. You only have to activate the wireless transmission on your mobile phone as follows:

• Settings -> Connections -> Activate screen mirroring and select your AllShare Cast.

7.1 Activate surround sound on the Galaxy S4

If you are watching a film from your S4, it is recommended to activate Dolby Surround (if you have a supporting sound system). You can activate Dolby Surround on the S4 at:

• Activate Settings -> My Device -> Accessory -> Audio output -> Surround Sound

Incidentally, new Samsung Smart TVs are said to support wireless screen mirroring without additional hardware, according to the manufacturer.