Screen mirroring shows everything on your Android phone on the TV in real time: home screen, apps, notifications, and movement. That is different from casting one video from inside an app.
Android mirroring usually uses Google Cast on Chromecast, Google TV, and Android TV devices, or Smart View/Miracast on Samsung phones and compatible TVs.
Does this affect you?
Use this guide if you want to mirror your whole Android screen, if your TV does not appear in the device list, or if mirroring connects and then drops. These steps apply to most Android phones running Android 9 or later.
Mirror with Google Cast
- Connect the phone and TV or streaming device to the same Wi-Fi network.
- Swipe down from the top of the phone to open Quick Settings. Swipe down again if needed.
- Tap Screen Cast or Cast.
- If the tile is missing, go to Settings > Connected devices > Connection preferences > Cast.
- Select your TV, Chromecast, Android TV, or Google TV device.
- Wait for the phone screen to appear on the TV.
To stop, open Quick Settings again and tap Disconnect or Stop mirroring.
Mirror with Samsung Smart View
Samsung phones use Smart View for many TV mirroring sessions, including Miracast-capable TVs.
- Swipe down to open the Samsung Quick Panel.
- Find and tap Smart View. Expand the tile list if it is not visible.
- Select your TV from the list.
- Approve the connection prompt on the TV if it appears.
Smart View can work differently from Google Cast and may connect directly to some TVs without a shared Wi-Fi network, though reliability depends on the TV model.
Fix failed or dropping mirroring
- Make sure both devices are on the exact same Wi-Fi network and not separated by a guest network.
- If your router has separate 2.4GHz and 5GHz names, put both devices on the same one while testing.
- Enable screen mirroring, Cast, or external device connection settings on the TV.
- Restart the phone Wi-Fi and restart the TV.
- Move the phone closer to the TV or router if the session drops.
If the TV never appears, confirm it supports Cast, Chromecast built-in, Miracast, or screen mirroring. Very old smart TVs may not include the required hardware.
Use casting or a cable when better
If you are watching YouTube, Netflix, or another supported app, use the in-app Cast icon instead of full mirroring. It saves battery, keeps playing if the phone locks, and avoids showing notifications on the TV.
For stubborn Wi-Fi problems, a USB-C to HDMI adapter may work if your phone supports video output. Not every Android phone does, so check the phone model before buying an adapter.
Sources
- Google Support – Cast your screen to your TV (2025)
- Samsung Support – Screen Mirroring with Smart View (2025)
- Roku Support – Screen mirroring troubleshooting (2025)