Samsung SM-G991W User Manual page 106

Apps and features
Using Samsung DeX and smartphone simultaneously
While using Samsung DeX, you can use separate apps on the external display or the
computer and your smartphone simultaneously.
For example, while watching a video on the connected TV or monitor, you can chat with your
friend on a messenger.
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 Samsung DeX screen and your smartphone's screen while using
Samsung DeX, select
While using Samsung DeX, you cannot lock the Samsung DeX screen and your
smartphone's screen by pressing the Side key.
Transferring data with a computer
Copying files
On the Samsung DeX screen, click and hold a file to select it in the My Files app or Gallery
app and drag it to the computer screen. On the computer screen, select a file and drag it to
the Samsung DeX screen, the My Files app, or the Gallery app.
Copying and pasting text
Using the keyboard shortcut keys, copy text on the Samsung DeX screen or computer screen
and paste it in the text input field on the other screen.
→ Lock DeX.
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