How do I connect my Note9 to a screen using DeX?

Last Update date : Jun 24. 2022

Samsung DeX allows you to use your smartphone like a computer by connecting your mobile device to an external display, such as a TV or monitor. Follow the below guide to learn how you can connect your smartphone to an external display in three ways.

Please note: Use only official Samsung DeX supported accessories to avoid performance problems and malfunctions due to third party applications.

DeX Cable

The DeX Cable is the easiest way to connect your Note9 to a screen, as it is through the use of a single cable.

1 Connect the cable to your Note9.

2 Connect the other end of the cable to your TV or monitor.

Two options will appear on your screen:

Start Samsung DeX: The mobile device’s screen will turn off and appear on the connected TV or monitor in desktop mode. Use your device as a pad to control what happens on the screen.

Switch to screen mirroring: The content of your Note9 will be mirrored on the connected screen.

HDMI adapter (USB Type-C to HDMI)

You can also connect your Note9 to an external screen using an HDMI adapter or a multi-port adapter.

1 Connect your Note9 to the adapter.

2 Connect the adapter to your TV or monitor.

Two options will appear on your screen:

Start Samsung DeX: The mobile device’s screen will turn off and appear on the connected TV or monitor in desktop mode. Use your device as a pad to control what happens on the screen.

Switch to screen mirroring: The content of your Note9 will be mirrored on the connected screen.

DeX Pad

1 Connect the DeX Pad to a power outlet.

2 Connect one end of the HDMI cable to the DeX Pad’s HDMI port, and plug the other end of the cable into a TV or monitor’s HDMI port.

3 Connect your smartphone to the mobile device connector (USB Type-C) on the DeX Pad.

Note: Ensure that your smartphone is horizontally inserted to the connector. Otherwise, the DeX Pad and your smartphone may be damaged.

If you're experiencing unusual behavior on Samsung mobiles, tablets, or wearables, you can send us an error report or ask us a question in the Samsung Members app. This allows us to take a closer look at what is happening. The data is anonymized and only held for the duration of the investigation. Find out more about how to send an error report here: How to use the Samsung Members app

We would love to know your feedback to help us improve. Please click the submit button to tell us what you think.

Thank you for your feedback!

Contact Info

Online

Get product support via live chat, email, and more.

Chat Support Learn more

Call

Get product support via our hotlines.

#GALAXY or #425299 [Mobile Phones & Tablets]
Available 24/7

1-800-10-7267864 [All Product, Toll Free, PLDT]
1-800-8-7267864 [All Product, Toll Free, Globe]
84222111 [All Product, Landline]
Daily (8:00 AM to 8:00 PM)

Face to face Support

Whether your product is in or out of warranty, our authorized service centers are ready to help.

Find a service center Book a repair service

Sign Language Support

Book an appointment to connect with our Samsung Sign Language Customer Support for help and advice on our products.

Learn More

Samsung Members

Connect with Samsung experts and fellow fans for tips on how to get the most out of your Galaxy device. You can also get access to exclusive support features and other exciting perks.

Download Now Join the Community

Right Care, Right Now

Let us take care of your Samsung products—anywhere, anytime, always!