Set up and use Samsung DeX on your Galaxy phone or tablet

Galaxy phone connected to laptop with Samsung DeX

Are you tired of squinting to get a better look at images? When you want to see every detail of an image or video, use Samsung DeX. It lets you connect your phone or tablet to a monitor or TV for a larger and clearer view in desktop mode. It's also perfect for multitasking or using productivity apps, such as PowerPoint, that are easier to use on a big screen. You just need to set it up with a compatible DeX accessory. If you’re using your Note20 5G or Note20 Ultra 5G phone, you can launch DeX wirelessly as well.

Note: Available screens and settings may vary by wireless service provider and software version. DeX is available on Galaxy S9, S10, S20, Note8, Note9, Note10, and Note 20 series phones, and Galaxy Tab S4, S5e, S6, and S7 series tablets.

Set up and use a DeX cable or HDMI cable

Note: You can also use a standard USB-C to HDMI adapter to start DeX. The DeX cable is supported on Note8, Note9, Note10, Note20 5G, Note20 Ultra 5G, S8, S9, S10, S20 series phones, Galaxy Fold, Tab A, Tab S4, Tab S5e, and Tab S6.

The DeX cable lets you connect your phone or tablet directly to a monitor without the use of any other accessories.

Connect the USB-C end of the DeX Cable to the port on the phone or tablet, and then connect the HDMI end into the monitor's HDMI port.

If needed, unlock your phone. If it's your first time using DeX, a popup message will display on your phone or tablet's Home screen. Tap Continue, and then tap Start to allow access to Full Desktop mode.

Use your device as a touchpad

Next, another Samsung DeX popup will appear on the phone or tablet - tap OK, and then swipe down from the top of the screen to open the Notification panel. Tap the notification that says "Use your phone as a touchpad.” Now you can control the monitor's cursor using your device! Read the instructions on the monitor, and then select OK. To scroll in Windows in DeX mode, touch and hold the touchpad, and then drag the pointer up or down.

If you want to use a keyboard and a mouse in Samsung DeX, you can connect Bluetooth devices directly to the device. Wired accessories are not compatible when using the DeX cable.

Switch from screen mirroring

On some devices, your monitor will automatically start screen mirroring whatever is on your device. To switch to Samsung DeX, open the Notification panel by swiping down from the top of the screen. Tap the Samsung DeX notification, and then tap Samsung DeX. The monitor will switch to Samsung DeX mode.

Set up and use a DeX Pad or Station

Note: Because of their size, tablets will not fit in the Pad or Station.

You can ace that research project by using a DeX Pad or a DeX Station. Both products are docking stations that your phone can sit in. With a DeX Pad your phone will lie flat, and with a DeX Station it will be propped upright. The great thing about a DeX Pad or DeX Station is that you can connect wired accessories directly to it, such as a wired keyboard. You can use Bluetooth accessories if desired.

To set it up, connect the DeX Pad or Station to the Fast Charging Travel adapter that came with the phone. Connect one end of an HDMI cable to the DeX's HDMI port, and then connect the other end into the monitor's HDMI port.

If your phone has a case on it, make sure you take it off before connecting because it may cause connection issues. Next, connect your phone to the DeX Pad or Station.

Use your device as a touchpad

If needed, unlock your phone. If it's your first time using DeX, a popup message will display on your phone's Home screen. Tap Continue, and then tap Start to allow access to Full Desktop mode. Another Samsung DeX popup will appear - tap OK.

Then, swipe down from the top of the screen to open the Notification panel. Tap the notification that says "Use your phone as a touchpad.” Now you can control the monitor's cursor using your phone! Read the instructions on the monitor, and then select OK.

Switch from screen mirroring

On some phones, your monitor will automatically start screen mirroring whatever is on your phone. To switch to Samsung DeX, open the Notification panel by swiping down from the top of the screen. Tap the Samsung DeX notification, and then tap Samsung DeX. The monitor will switch to Samsung DeX mode.

Samsung DeX settings

Note: DeX settings can only be accessed in DeX mode.

When you connect your phone or tablet to a DeX product, Samsung DeX Settings will be added to your monitor's Settings list. To access it, select Settings on the connected monitor, and then select Samsung DeX.

From here, you can customize your wallpaper or screen resolution for Samsung DeX, access keyboard and mouse settings, try new features in advance with Samsung DeX Labs, or learn how to use Samsung DeX. Let the exploring begin!

Samsung DeX settings displayed on a monitor

Set up and use Samsung DeX for PC

Note: This feature is only available on the Galaxy Fold, S10, S20, Note10, and Note20 series. It is not available on Galaxy tablets.

The new DeX for PC app is similar to the regular DeX mode, but it has some other features thrown in, and you don't need to buy a separate DeX accessory; you can use the USB charging cable that came with your phone.

First, you'll need to download the DeX for PC app. On your computer, go to the Samsung Dex website, and then download the version you need. Next, navigate to and open the download file, and use the on-screen prompts to complete the setup process.

When the software is set up, open up the Samsung DeX app on your computer. Then, connect your compatible phone to the computer using a USB-C cable. If your computer doesn't have this connection, you can use a USB-C to USB-A cable.

Dex for PC window for iOS

Wait a few seconds for the phone to connect; when it does, a DeX window will appear on your monitor. Use your computer's mouse to control things on your connected phone, such as opening the phone's app.

Here is a list of the cool things you can do only with DeX for PC:

  • Click and drag a file from your PC to the Samsung Dex window to transfer a PC file to your phone. Copied images will appear in your phone's Gallery app. However, you'll need to make sure your device's USB settings are set to Transferring files.
     

  • Text your phone's contacts from your PC. You can copy and paste text from the phone to PC and vice versa.
     

  • Simultaneously run up to 5 apps from your phone on the computer. Apps on your PC will be resized for a desktop experience.

Use DeX on a tablet with no external display

The Tab S4 and S6 have DeX built right into them. In other words, you can use DeX without connecting the tablet to a monitor!

Just swipe down from the top of the screen to open the Quick settings panel. Then, tap the Samsung DeX icon. If it's your first time using this feature, read the instructions and follow the on-screen instructions.

The DeX interface will load on the tablet the same way it appears on desktops and monitors. You can navigate it using the touch screen.

Samsung Dex icon highlighted on a Galaxy tablet

Use DeX wirelessly with a TV

Note: Wireless DeX is supported on Samsung 2018 TVs or newer, and on smart TVs that support Miracast technology. Some 2018 TVs may get better results using an HDMI cable.

With your Note20 5G and Note20 Ultra 5G phones, you can use DeX on your smart TV! The best part is there are no cables or DeX accessories required. You can even operate up to 5 apps at once on your TV when using DeX mode.

On your Note20 5G or Note20 Ultra 5G, swipe down from the top of the screen to open the Quick settings panel, and then tap the DeX icon. Select your TV from the list, and then tap Start now. Your TV will prompt you to select Allow before connecting. Then, tap Start on your phone to allow the necessary permissions. You can now use DeX mode on your TV!

Send Dex to your TV menu on a Galaxy phone

To use your phone as a touchpad, swipe down from the top of the screen and select the touchpad notification.

For a smooth wireless connection, it is recommended that you use your phone and TV within a short distance of each other. This will prevent stuttering and lagging.

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