The fastest way to connect your phone

The easiest method is Samsung SmartThings, which works on most Samsung TVs made in the last five years. Open SmartThings on your phone, tap the plus icon, select your TV from the list, and follow the on-screen prompts. Your phone and TV must be on the same Wi-Fi network. Once connected, you can mirror your screen, cast photos and videos, or use your phone as a remote.

If your TV is older or SmartThings doesn't find it, use Miracast (built into Android phones) or AirPlay (for iPhones). Both are wireless and don't require an app read. On Android, swipe down from the top of your screen, tap "Cast" or "Screen Share", and select your TV. On iPhone, swipe up from the bottom, tap "Screen Mirroring", and choose your Samsung TV.

For a wired connection, use an HDMI cable with an adapter that matches your phone's port—USB-C, Lightning, or Micro-USB. Plug the adapter into your phone, connect the HDMI cable, and switch your TV to the HDMI input. This method works on any TV and phone combination, but you'll be tethered to a cable.

Key Takeaways

  • SmartThings is the simplest method for Samsung phones and TVs—both devices need to be on the same Wi-Fi network.
  • Miracast (Android) and AirPlay (iPhone) work wirelessly without downloading an app and are built into most phones.
  • An HDMI adapter cable works on any phone and TV combination but requires you to stay near the TV.
  • Your phone and TV must be on the same Wi-Fi network for wireless methods to work.
  • Check your TV's input source after connecting—it won't automatically switch from cable or antenna.

Connecting with SmartThings on a Samsung phone

SmartThings is Samsung's native app and the most reliable option if you own a Samsung phone and TV. Open the SmartThings app on your phone. If you don't have it, read it from the Google Play Store or Apple App Store. Tap the plus icon in the top left corner, then select "Add device".

The app will scan for nearby devices. When your TV appears in the list, tap it. Your phone will send a code to the TV—you'll see a prompt on your TV screen asking you to confirm the connection. Select "Allow" or "Connect" on the TV remote. Once confirmed, your phone is paired with the TV.

After pairing, open any photo, video, or app on your phone and look for a cast icon (usually three curved lines with a dot). Tap it and select your TV. The content will appear on your screen. To stop casting, tap the cast icon again and select "Disconnect".

Using Miracast to mirror an Android phone

Miracast is a wireless standard built into Android phones and most Samsung TVs. Swipe down twice from the top of your Android phone to open the full quick settings menu. Look for "Cast", "Screen Share", or "Wireless Display"—the name varies by phone model. Tap it.

Your phone will scan for nearby devices. Select your Samsung TV from the list. The TV will ask for permission—use your remote to select "Allow" or "Connect". Your phone screen will now appear on the TV. Everything you do on your phone will show on the TV in real time.

To disconnect, swipe down to the quick settings menu again and tap the cast option to turn it off. If Miracast doesn't find your TV, make sure both devices are on the same Wi-Fi network and that your TV's Wi-Fi is turned on. Check your TV's settings menu under "Network" or "Wireless" if you're unsure.

Using AirPlay to mirror an iPhone

AirPlay is Apple's wireless casting standard and works on Samsung TVs made in 2018 or later. Swipe down from the top right corner of your iPhone to open Control Center. Tap "Screen Mirroring". A list of nearby devices will appear—select your Samsung TV.

Your TV will display a code. You don't need to enter it; the connection happens automatically. Your iPhone screen will now mirror on the TV. Any app, photo, or video you open will appear on the big screen. To stop mirroring, open Control Center again, tap "Screen Mirroring", and select "Stop Mirroring".

If your TV doesn't appear in the list, check that your iPhone and TV are on the same Wi-Fi network. Restart your TV and try again. If you have an older Samsung TV, AirPlay may not be supported—use an HDMI adapter instead.

Connecting with an HDMI adapter cable

A wired connection works on any phone and TV, regardless of brand or age. You'll need an HDMI cable and an adapter that matches your phone's charging port. iPhones use a Lightning to HDMI adapter, most Android phones use USB-C to HDMI, and older phones may need Micro-USB to HDMI.

Plug the adapter into your phone's charging port. Connect one end of the HDMI cable to the adapter and the other end to an available HDMI port on the back or side of your TV. Turn on your TV and use the remote to switch to the correct HDMI input—usually labeled HDMI 1, HDMI 2, or HDMI 3. Your phone screen will appear on the TV.

The advantage of a wired connection is reliability—there's no Wi-Fi to drop and no pairing to set up. The downside is that you're limited by cable length and can't move far from the TV. Adapters cost between $15 and $40 and are available at most electronics retailers.

Troubleshooting when your phone won't connect

The most common reason for connection failure is that your phone and TV are on different Wi-Fi networks. Check that both devices are connected to the same network. Open your phone's Wi-Fi settings and your TV's network settings to confirm. If they're on different networks, connect your phone to the TV's network.

If your TV doesn't appear in the cast list, restart both devices. Turn off your TV completely, wait 30 seconds, and turn it back on. Restart your phone as well. Then try casting again. If the TV still doesn't appear, check that Wi-Fi is enabled on your TV—some TVs have a separate Wi-Fi toggle in the settings menu.

For HDMI connections, try a different HDMI port on your TV. Some ports may be damaged or reserved for specific devices. If the image appears but is cut off at the edges, go to your TV's picture settings and look for "Overscan" or "Just Scan"—toggle this setting to fit the image properly on your screen.

Casting specific apps and content

Many streaming apps like Netflix, YouTube, and Spotify have a built-in cast button. Open the app, start playing a video or song, and look for the cast icon (three curved lines with a dot). Tap it and select your TV. The content will play on your TV while your phone becomes a remote control.

This method is more efficient than mirroring your entire phone screen because it uses less battery and Wi-Fi bandwidth. The app streams directly to the TV instead of sending your phone's display. If you're watching videos or listening to music for extended periods, casting the app is the better choice.

Not all apps support casting. If you don't see a cast icon, you'll need to use screen mirroring instead. Some older apps don't have casting built in, but you can still mirror your phone screen to see the content on your TV.

Frequently Asked Questions

Do I need Wi-Fi to connect my phone to my Samsung TV?

You need Wi-Fi for wireless methods like SmartThings, Miracast, and AirPlay. A wired HDMI connection does not require Wi-Fi at all. If your Wi-Fi is down, use an HDMI adapter cable instead.

Can I connect an iPhone to a Samsung TV?

Yes. iPhones work with Samsung TVs using AirPlay (wireless) or an HDMI adapter (wired). AirPlay works on Samsung TVs made in 2018 or later. For older TVs, use the HDMI adapter method.

What if my Samsung TV is too old for SmartThings?

Older Samsung TVs may not support SmartThings. Use Miracast (Android) or AirPlay (iPhone) instead. Both are wireless and don't require the SmartThings app. If those don't work, an HDMI adapter cable will work on any TV.

Can I use my phone as a remote after connecting?

Yes, with SmartThings. Once your phone is paired, you can use the SmartThings app to control your TV's volume, channels, and power. The app also lets you launch apps directly from your phone. With Miracast or AirPlay, your phone acts as a remote only for the content being cast, not the TV itself.

Why does my screen keep disconnecting?

Disconnections usually happen when your phone moves out of Wi-Fi range or the connection drops. Move closer to your TV and router. If you're using a 5GHz Wi-Fi network, try switching to 2.4GHz—it has better range. Restart both devices and try again.