Samsung SM-N975F/DS User Manual page 182

Apps and features
Using the external display and smartphone simultaneously
While using Samsung DeX, you can use separate apps on the external display and your
smartphone simultaneously.
For example, while watching a video on the connected TV or monitor, you can create a note
on your smartphone.
On the connected TV or monitor, launch an app to run on the Samsung DeX screen. Then,
launch another app on your smartphone.
Locking the Samsung DeX screen
If you want to lock the external display and your smartphone's screen while using Samsung
→ Lock DeX.
DeX, select
While using Samsung DeX, you cannot lock the external display and your
smartphone's screen by pressing the Function key.
Enjoying games vividly on a large screen
Play your smartphone's games on a large screen. On the connected TV or monitor, launch the
Game Launcher app.
Ending Samsung DeX
When you disconnect your smartphone from the connected TV or monitor, Samsung DeX will
end.
Disconnect your smartphone from the HDMI adaptor.
To switch to screen mirroring mode, select
SAMSUNG CONFIDENTIAL
→ Exit DeX.
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