Samsung SM-G780G/DS User Manual page 61

Apps and features
On your smartphone's screen, tap Start.
3
Without changing your smartphone's screen, the Samsung DeX screen will appear on the
connected TV or monitor.
(USB Type-C to HDMI)
Wired connections to computers
You can use Samsung DeX by connecting your smartphone to a computer using a USB cable.
To use the USB cable supplied with the device, the computer must have a USB Type-C port.
On a computer, visit
1
app.
Connect your smartphone to a computer using a USB cable.
2
HDMI adaptor
www.samsung.com/samsung-dex and download the Samsung DeX
61
HDMI cable