if you refer to screen mirror by HDMI, you need a Type C to HDMI adapter and your will be prompted between Dex and Screen Mirroring.
On some models this same feature will be called Quick Connect, just in-case you have a new model and do not see the same naming options.
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There are 2 ways to prepare your Samsung TV
Step 1. Using Remote Press the Source button.
Step 2. Navigate to and select the Screen Mirroring option.
Step 3. Your TV will display a screen show message “waiting for a device to be connected” until your device is connected.
Please note: There is a two-minute limit to connect your device. After that the two minutes you need to follow the same process again.
Step 1. Using Remote Select Menu option a Search for Network and Press the Select button.
Step 2. Scroll down and check Screen Mirroring option and Press the Select button again to turn on Samsung Screen Mirroring
Prepare your Samsung smartphone and tablet
Step 1. Pull down the notification menu and Select the Screen Mirroring (Smart View) option. Your device will automatically scan for TVs and other smart devices to which they can be mirrored.
Step 2. Select the device which you want to connect. At this time we have to connect the TV. Make sure your TV must have the screen mirroring function switched on. Your device will now successfully by connecting to your TV.
Step 3. Once connected, your mobile device screen will now be displayed on the TV.
What you can do after successfully connecting the Samsung screen mirroring:
Step 1. You can see the images stored on your smartphone.
Step 2. Watch videos and control it through your device like play pause.
Step 3. Play or stream video from Apps.
Step 4. Playing music through your TV’s speakers instead of your external devices.
Step 5. Play Games on TV and again control it from your smartphone.
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