The Samsung Galaxy S9 is packed with features that allow you to mirror the screen to almost any TV. Get it connected to a television using any of these three options.
Option 1 – Smart TV or Media Device
- Get your TV ready to receive a signal. Check the documentation provided with your TV to see how to connect smartphones to your set. If you have an older non-smart TV, you can use a device such as a Roku, or Amazon Fire TV.
- Once the TV is set to receive a signal. swipe down the quick menu at the top of the S9 screen, then choose “Smart View“.
Option 2 – Chromecast
The Google Chromecast is a favorite wireless option for many S9 users.
- Connect the Chromecast to the HDMI port on your TV and a USB port or other power source.
- Ensure the Chromecast and Galaxy S9 are connected to the same Wi-Fi network.
- Download and install the Google Home app to the S9.
- Once the Home app is configured with your Chromecast, apps will have a “Cast”
option. All screens can be mirrored from the S9 from the Home app buy selecting 
> “Cast screen / audio“.
Option 3 – DisplayPort
- Connect a Samsung USB-C to HDMI Adapter to the USB port on your phone.
- Connect a standard HDMI cable between the adapter and TV, and you’re ready to run.
Ankit says
Same problem this is annoying.
Mitch Bartlett says
I have heard of this issue. Can you try the following and let me know if it works?
On your Android device, tap Settings.
Scroll down and tap Apps and then Google Play Services and then Permissions.
Look for “Microphone” and slide the slider On
Nik says
Can’t get option 2 to work. Home comes up and says device isn’t optimized for casting. Can only get Chrome/YouTube to cast anything, and SmartView doesn’t work either. Would really like to be able to cast my screen, not just an app.