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10 Tech How-To

How to Connect Samsung Galaxy A7 to TV

Guide 10-35657 · Updated · Step by step

This guide walks you through every reliable way to connect your Samsung Galaxy A7 to a TV, whether you want to mirror your screen, watch videos, or give a presentation. You’ll learn both wired and wireless methods, what cables and adapters you need, and how to fix common connection problems.

What You’ll Need

  • Your Samsung Galaxy A7 (any variant: 2017, 2018, or A7 Lite)
  • A TV with an HDMI port (most modern TVs have at least one)
  • For wired connection: a USB-C to HDMI adapter or cable (the Galaxy A7 uses USB-C)
  • For wireless connection: a Wi-Fi network and a compatible smart TV (Samsung Smart TV, or a TV with Chromecast built-in, or a streaming device like Chromecast, Roku, or Amazon Fire Stick)
  • Optional: a power source for the adapter if it requires external power

Step-by-Step

Method 1: Wired Connection (USB-C to HDMI)

  1. Check your phone’s port: The Samsung Galaxy A7 (2017 and 2018) uses a USB-C port. The Galaxy A7 Lite also uses USB-C. Make sure you have a USB-C to HDMI adapter or cable. Note: Some older A7 models (like the 2016 version) use micro-USB, but this guide focuses on the USB-C versions.
  2. Connect the adapter to your phone: Plug the USB-C end into your phone’s charging port.
  3. Connect an HDMI cable to the adapter: If your adapter has an HDMI port, plug one end of an HDMI cable into it. If you have a USB-C to HDMI cable (with built-in ends), skip this step.
  4. Connect the other end to your TV: Plug the other end of the HDMI cable into an available HDMI port on your TV.
  5. Select the correct HDMI input on your TV: Use your TV remote to switch to the HDMI input you plugged into (e.g., HDMI 1, HDMI 2). Your phone’s screen should appear on the TV almost immediately.
  6. Adjust phone settings if needed: If the screen doesn’t appear, check your phone’s notification panel for a “Screen mirroring” or “Display” notification. Tap it and select “Screen mirroring” or “Smart View” if prompted.

Method 2: Wireless Connection via Smart View (Samsung Smart TV)

  1. Turn on your Samsung Smart TV: Make sure it’s on the same Wi-Fi network as your phone.
  2. Open the notification panel on your phone: Swipe down from the top of the screen to open the quick settings menu.
  3. Find and tap “Smart View”: Look for the icon that looks like a rectangle with a Wi-Fi symbol at the bottom left. If you don’t see it, swipe left on the quick settings icons to find it, or tap the pencil/edit icon to add it.
  4. Select your TV from the list: Your phone will scan for available devices. Tap your TV’s name when it appears.
  5. Accept the connection on your TV: If prompted, accept the connection on your TV screen. Your phone’s screen will then be mirrored.
  6. To stop mirroring: Swipe down and tap “Smart View” again, then select “Disconnect” or simply turn off the TV.

Method 3: Wireless Connection to Any TV with Chromecast or Streaming Device

  1. Set up your Chromecast or streaming device: Plug it into your TV’s HDMI port and make sure it’s on the same Wi-Fi network as your phone.
  2. Download the Google Home app (if using Chromecast): Install and open the Google Home app on your phone. Follow the setup instructions to link your device.
  3. Open the app you want to cast from: For example, open YouTube, Netflix, or your gallery.
  4. Tap the Cast icon: Look for the rectangular icon with Wi-Fi waves in the top-right corner of the app.
  5. Select your device: Tap the name of your Chromecast or streaming device. The content will start playing on the TV.
  6. To mirror your entire screen (not just an app): Open the Google Home app, tap the device you want to mirror to, and then tap “Cast my screen.” Your phone’s screen will appear on the TV.

Common Mistakes

  • Using the wrong adapter: The Galaxy A7 requires a USB-C to HDMI adapter that supports video output. Many USB-C adapters only support charging or data transfer, not video. Check the product description for “video output” or “HDMI” support.
  • Not selecting the correct HDMI input: If you plug the cable into HDMI 2 but your TV is set to HDMI 1, you’ll see a black screen. Use your TV remote to cycle through inputs.
  • Phone and TV on different Wi-Fi networks: For wireless mirroring, both devices must be on the same network. If you have a dual-band router, make sure both are connected to the same band (2.4 GHz or 5 GHz).
  • Assuming all Samsung TVs support Smart View: Older Samsung TVs may not have Smart View built-in. In that case, use a Chromecast or a wired connection.
  • Not enabling the correct mode on the TV: Some TVs have a “screen mirroring” mode that needs to be activated. Check your TV’s manual or look for a “Screen Mirroring” or “Miracast” option in the TV’s menu.

Tips

  • For the best wired experience: Use a high-quality USB-C to HDMI adapter that supports 4K resolution if your TV is 4K. The Galaxy A7 supports up to 1080p output, so you won’t get 4K from the phone, but the adapter will handle the signal properly.
  • Keep your phone charged: Screen mirroring and casting can drain the battery quickly. Plug your phone into a charger while connected.
  • Use a wired connection for gaming or presentations: Wireless mirroring can have a slight delay, which is fine for videos but not ideal for fast-paced games or live presentations. A wired connection is more reliable.
  • Turn off battery saver mode: Battery saver can interfere with wireless connections. Disable it in Settings > Battery before mirroring.
  • Update your phone’s software: Make sure your Galaxy A7 is running the latest Android version. Go to Settings > Software update > Download and install.

Troubleshooting

Wired connection not working

  • Check the adapter: Try a different USB-C to HDMI adapter. Some adapters are not compatible with Samsung phones. Look for one that specifically mentions Samsung compatibility.
  • Check the HDMI cable: Try a different HDMI cable. A faulty cable can cause no signal.
  • Try a different HDMI port on the TV: Sometimes a port is faulty. Plug into another port and select that input.
  • Restart your phone: A simple restart can fix software glitches that prevent video output.

Wireless connection not finding the TV

  • Ensure both devices are on the same Wi-Fi network: Check your phone’s Wi-Fi settings and your TV’s network settings. If you have a guest network, make sure both are on the main network.
  • Restart your router: Sometimes the router needs a refresh. Unplug it for 30 seconds and plug it back in.
  • Move closer to the router: Weak Wi-Fi signals can prevent discovery. Move your phone and TV closer to the router.
  • Update your TV’s firmware: Check your TV’s settings for a software update. Outdated firmware can cause compatibility issues.
  • Use the Google Home app instead of Smart View: If Smart View isn’t working, try casting via the Google Home app as described in Method 3.

Screen is black or flickering

  • Check the resolution: Your TV may not support the resolution your phone is outputting. Try changing the resolution on your phone (Settings > Display > Screen resolution) to a lower setting like 720p.
  • Disable HDCP: Some TVs have HDCP (High-bandwidth Digital Content Protection) issues. Look for an HDCP setting in your TV’s menu and try turning it off (if available).
  • Try a different HDMI cable: A low-quality cable can cause flickering. Use a high-speed HDMI cable.

Audio not playing on TV

  • Check the volume on your TV: Make sure the TV volume is turned up and not muted.
  • Change the audio output on your phone: When connected, your phone should automatically route audio to the TV. If not, go to Settings > Connections > Audio output and select your TV.
  • For wired connections: Some adapters have a separate audio jack. If your TV doesn’t have speakers, you may need to connect external speakers to the adapter.

Frequently Asked Questions

Can I connect my Galaxy A7 to an older TV without HDMI?

If your TV only has component or composite inputs (red, white, yellow), you’ll need an HDMI-to-composite converter box. These are available online and at electronics stores. Connect the HDMI cable from your phone to the converter, then use the composite cables to connect to the TV.

Why doesn’t my phone charge while connected via USB-C to HDMI?

Some adapters have a separate USB-C port for charging. If yours doesn’t, you’ll need a powered adapter (one that plugs into a wall outlet). Alternatively, use a wireless charging pad if your phone supports it.

Can I use my phone while it’s mirrored to the TV?

Yes, you can use your phone normally while it’s mirrored. The TV will show exactly what’s on your phone screen. This is useful for navigating apps or showing photos.

Does Smart View work with non-Samsung TVs?

Smart View uses Miracast technology, which is supported by many TVs from other brands (LG, Sony, etc.) that have built-in screen mirroring. However, it’s not guaranteed. If your TV doesn’t support Miracast, use a Chromecast or a wired connection.

Why is there a delay between my phone and the TV when casting?

Wireless casting always has a slight delay due to Wi-Fi transmission. This is normal and usually not noticeable for videos. For real-time activities like gaming, use a wired connection to minimize delay.

Can I connect my Galaxy A7 to a TV using a regular USB cable?

No. A standard USB cable (USB-A to USB-C) will not carry video signals. You need a USB-C to HDMI adapter or cable that supports video output.

Related

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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