Samsung SM-G970F User Manual page 176

https://www.mobile-manuals.com/
Apps and features
Connecting devices and starting Samsung DeX
1
Connect an HDMI adaptor to your smartphone.
2
Connect an HDMI cable to the HDMI adaptor and to a TV or monitor's HDMI port.
3 On your smartphone's screen, tap Continue → Start.
Without changing your smartphone's screen, the Samsung DeX screen will appear on the
connected TV or monitor.
HDMI adaptor
(USB Type-C to HDMI)
176
HDMI cable