Samsung DeX for PC screen not appearing

If the Samsung DeX feature is not letting you connect your Galaxy device to your PC, there are a few things you can try. You may need to update the app or approve the permissions necessary to display the DeX screen.
Galaxy S25 Ultra displaying the lock screen with a computer running Windows in the background.
Galaxy S25 Ultra displaying the lock screen with a computer running Windows in the background.

Samsung DeX for PC screen not appearing

Note
Windows PCs with an ARM processor may not be able to use Samsung DeX. DeX for PC is not supported on the Galaxy S25 series or other models updated to One UI 7 or later. Instead, you can use Link to Windows.
1

Make sure your Galaxy device is compatible with DeX.

Your device may or may not be compatible depending on what version of DeX you are using.

  • The original DeX: Supported by Galaxy S8 series, S9 series, S10 series, S20 series, Note8, Note9, Note10, Note 20, Z Fold series phones, S21 series, S22 series, S23 series, S24 series, S25 series, and Galaxy Tab S4 series, Tab S5e, Tab S6 series, Tab S7 series, Tab S8 series, Tab S9 series, Tab S10 series, Tab Active Pro, and Tab Active 3. The original version of DeX requires you to use a DeX accessory, such as a DeX Station or DeX Cable.
  • DeX for PC: This feature is only available on the Galaxy Z Fold series phones, S9 series, S10 series, S20 series, S21 series, S22 series, Note9 series, Note10, Note20, S23 series, S24 series, and A90 5G. It is not available on Galaxy tablets, Galaxy S25 series, or other models updated to One UI 7 or later. With this version, you can connect wirelessly or using a USB-C cable.
2

Make sure the DeX app is open.

Please make sure Samsung DeX is open and that its icon appears in the computer's taskbar. The app sometimes closes automatically when there is no activity. If it's not currently running, open the app.
3

Disconnect and reconnect the USB cable.

Disconnect and then reconnect your USB cable from the PC. Once your phone is recognized by your PC, a loading screen will appear on the PC. On your phone, follow any instructions that appear to finish the connection process.
Note
You can skip this step if you are connecting to DeX wirelessly.
4

Check your Wi-Fi connection.

If you're trying to connect wirelessly, check the Wi-Fi connection on your PC and Galaxy device. Your PC and the device you’re trying to connect to must be on the same Wi-Fi network.
Note
You can skip this step if you are connecting via USB cable or accessory.
5

Check if the DeX for PC app needs updates.

If you're using the DeX for PC app, check if the app is the most recent version. The steps will vary depending if you are using a Windows PC or a Mac.

  • On a PC: Open the Samsung DeX Home screen, and select the Settings icon in the top right of the DeX window; even if DeX is having trouble detecting your device, the Settings icon will still appear. Next, select Update under About Samsung DeX and update the app if new software is available.
  • On a Mac: Open the Samsung DeX Home screen, and then select Samsung DeX in the upper left-hand corner (next to the Apple icon). Select Check for updates; if an update is available, you can download it.
6

Check with your administrator.

Company-provided PCs and public PCs typically have their own security software installed, so you may be unable to connect to DeX. If you can’t connect, contact the administrator of the PC.
7

Make sure Dex for PC is selected on the Galaxy device.

When connecting to the DeX for PC app, there are two options on your Galaxy device: DeX on TV or monitor, and DeX on PC.

Open the Quick settings panel on your phone and tap the DeX icon. Make sure you are on the DeX on PC page. If you aren't, tap More options (the three vertical dots) in the top right, and then tap Switch to PC.

8

Allow certain permissions on a Mac.

On your Mac, go to System Preferences, select Security & Privacy, and then select the General tab. Under the "Allow apps downloaded from" section, if you see a message that reads “System software from developer DEVGURU Co. was blocked from loading,” click Allow.

You may also need to give DeX permission to make changes to your Mac. From the Security & Privacy settings page, select the Privacy tab, and then select Accessibility. If Samsung DeX isn't already displayed, select the plus sign and then choose Samsung DeX. Make sure Samsung DeX is checked off. You should now be able to use DeX on your Mac.

9

Send a data log file.

If the issue still persists, we respectfully ask you to send us the log data for more accurate diagnosis.

  • From a phone: While your phone is connected to your PC and DeX is running, open the Samsung Members app from the phone itself (not the PC). Tap the Support tab, and then swipe to and tap Error reports. If prompted, allow the necessary permissions. Select Application, choose the frequency of the problem, and then describe the issue in the comment section. Make sure that Send system log data is checked off. You can also attach screenshots if desired by tapping the Paperclip icon. When you’re ready, tap the Send icon. Your comment and the log data will be sent to Samsung.
  • From a Windows PC: On the PC with the DeX app installed, navigate to and open [C:\Program Files (x86)\Samsung\Samsung DeX\utility]. From here, run the LogCollector file. A Zip file containing the log data will be created on the desktop with the name "SamsungDeXLog."

    Next, visit the Samsung inquiry website. Sign into your Samsung account if prompted, and then fill out the form and attach the zip file. Select Submit when you are finished.
  • From a Mac: On the Mac with the DeX app installed, open Finder, and then select Applications. Select Utilities, and then select Terminal. In the Terminal app, type the following command: /Applications/Samsung\ DeX.app/Contents/MacOS/logCollector.sh. A zip file named "SamsungDeXLog_XXXX" will appear on the desktop screen.

    Next, visit the Samsung inquiry website. Sign into your Samsung account if prompted, and then fill out the form and attach the zip file. Select Submit when you are finished.
Recommended Articles
Program the keys on your Galaxy XCover6 Pro
Program the keys on your Galaxy XCover6 Pro
Program the XCover key and Top key The XCover key is the large button on the side of your Galaxy XCover6 Pro. It can be set to perform different functions, such as initiating push-to-talk communications between your colleagues or turning on your flashlight. You can easily customize this key to meet your needs. Navigate to and open Settings, and the
 Connect S Pen error displays on Galaxy phone or tablet
Connect S Pen error displays on Galaxy phone or tablet
If you receive an error that says you need to connect your S Pen to your phone or tablet, it could be because the pen needs to charge or because it's too far away from your device. Another possibility is that there is magnetic interference with the S Pen.
 Galaxy device not responding to S Pen Air actions or gestures
Galaxy device not responding to S Pen Air actions or gestures
If your Samsung phone or tablet is not responding to the S Pen, it could be because the pen is too far away from your device. It's also possible that a low battery or another factor is interfering with the S Pen's signal.
Was this content helpful?
We're here for you

Contact Samsung Support

Contact us online through chat and get support from an expert on your computer, mobile device or tablet. Support is also available on your mobile device through the Samsung Members App.
Get support
auto-contact_us-pc-2x auto-contact_us-pc-2x
flag
Go to site