The Basic Steps to Cast from Your Phone

To cast your phone to a TV with Chromecast, you need three things: a phone running Android or iOS, a Chromecast device plugged into your TV, and both devices on the same Wi-Fi network. Open the app you want to cast from — YouTube, Netflix, Google Photos, or any app with a cast icon — tap the cast icon (it looks like a rectangle with curved lines in the corner), select your Chromecast device from the list, and the content plays on your TV while you control it from your phone.

The cast icon appears in the top or bottom corner of most apps, though its exact location varies. If you don't see it, the app may not support casting. Your phone stays connected to the network but doesn't need to stay on the same screen — you can lock it, switch apps, or even leave the room while content plays on the TV.

Key Takeaways

  • Your phone and Chromecast must be on the same Wi-Fi network for casting to work.
  • The cast icon appears in most streaming apps; tapping it shows available Chromecast devices within seconds.
  • Once you cast, your phone acts as a remote — you can lock the screen or switch apps without stopping playback.
  • Not all apps support casting; YouTube, Netflix, Spotify, Google Photos, and Chrome browser are the most common options.
  • If your Chromecast doesn't appear in the device list, restart both the Chromecast and your phone's Wi-Fi connection.

Setting Up Your Chromecast Device First

Before you can cast from your phone, your Chromecast must be set up and connected to your Wi-Fi. Plug the Chromecast into an HDMI port on your TV, then plug the power cable into a wall outlet or USB port. The Chromecast will display a setup code on your TV screen.

On your phone, open the Google Home app (available free on Android and iOS). Tap the plus icon to add a device, select "Set up device," choose "Set up a new device," and follow the prompts. When asked, select your Wi-Fi network and enter the password. The app will ask you to confirm the setup code shown on your TV. Once confirmed, your Chromecast is ready to use and will remember this network.

If you already set up your Chromecast but it's not appearing when you try to cast, make sure both your phone and the Chromecast are on the same Wi-Fi network — not a guest network or a different band (2.4 GHz vs. 5 GHz). Restart the Chromecast by unplugging it for 10 seconds, then plug it back in.

Casting from Popular Apps and Services

YouTube is the simplest app to cast from. Open any video, tap the cast icon at the top right, select your Chromecast, and the video starts playing on your TV. You can pause, rewind, or skip using your phone, and the video continues even if you lock your phone or switch to another app.

Netflix works the same way: open the app, choose a show or movie, tap the cast icon, and select your device. Spotify and other music apps show the cast icon in the playback controls at the bottom of the screen. Google Photos lets you cast albums or individual photos by tapping the cast icon in the top right. Chrome browser on your phone can cast entire web pages — tap the three-dot menu, select "Cast," and choose your device.

Apps that don't have a built-in cast icon cannot send video or audio directly to Chromecast through this method. If an app you use doesn't show a cast icon, you can use screen mirroring instead, which sends everything your phone displays to the TV (see the section below).

Screen Mirroring When Apps Don't Have a Cast Icon

Screen mirroring is different from casting. Instead of sending just the video or audio, it mirrors your entire phone screen to the TV. This works with any app, but it uses more battery and can be slower than casting.

On Android, swipe down from the top of your screen twice to open the full quick settings menu. Look for "Cast," "Screen Cast," or "Wireless Display" (the name varies by phone maker). Tap it, select your Chromecast device, and your phone screen appears on the TV. Everything you do on your phone shows on the TV in real time.

On iPhone, swipe down from the top right corner to open Control Center. Tap "Screen Mirroring," select your Chromecast device, and your iPhone screen mirrors to the TV. Note that some apps, including Apple TV+ and some banking apps, block screen mirroring for security reasons — you'll see a black screen if you try to mirror them.

Troubleshooting When Your Phone Won't Connect

If your phone doesn't see your Chromecast device in the cast menu, the most common cause is that they're on different Wi-Fi networks. Check that your phone is connected to the same network name (SSID) as your Chromecast. If your router broadcasts both 2.4 GHz and 5 GHz bands with the same name, try connecting your phone to the 2.4 GHz band specifically — Chromecast devices work more reliably on 2.4 GHz.

Restart both devices: unplug your Chromecast for 10 seconds and plug it back in, then turn your phone's Wi-Fi off and back on. Open the Google Home app and check that your Chromecast appears in the device list. If it doesn't, tap the device and select "Forget" to remove it, then set it up again from scratch.

If casting starts but stops after a few seconds, your Wi-Fi connection may be weak. Move closer to your router or check whether other devices are using a lot of bandwidth. Restarting your router (unplugging it for 30 seconds) often fixes temporary connection problems. If the problem persists, check the Google Home app for any available updates to your Chromecast firmware — updates happen automatically, but you can force a check by opening the device settings.

Controlling Playback from Your Phone

Once content is casting, your phone becomes a remote. In the app you're casting from, you'll see playback controls: play, pause, skip forward, skip back, and volume. These controls work even if you lock your phone or switch to a different app — the content continues playing on your TV.

You can also control volume using your phone's physical volume buttons while casting. If you want to stop casting, tap the cast icon again and select "Stop Casting," or straightforward close the app. The video or audio stops on the TV when ready.

Some apps let you queue up content while casting. In YouTube, for example, you can browse and add videos to a queue while one video plays on the TV. The next video starts automatically when the current one ends. Check your app's menu to see if this feature is available.

Casting Audio Only to Speakers

Chromecast devices designed for audio — like Google Home speakers or Chromecast Audio devices — work the same way as video Chromecast devices. Open Spotify, YouTube Music, or any music app, tap the cast icon, and select your audio device. The music plays through the speaker while your phone controls playback.

You can also cast audio to a Chromecast connected to a TV. Open a music app, tap cast, select your TV's Chromecast, and the audio plays through the TV's speakers. The TV screen will show album art or a visualization while the music plays.

Frequently Asked Questions

Do I need to keep my phone unlocked while casting?

No. Once casting starts, you can lock your phone, switch apps, or put it in your pocket. The content continues playing on your TV, and you can still use your phone's volume buttons or the app's controls to adjust playback. Your phone just needs to stay connected to Wi-Fi.

Can multiple people cast to the same Chromecast at the same time?

No. Only one device can cast to a Chromecast at a time. If someone else tries to cast while you're already casting, their device will ask if they want to take over. Taking over stops your content and starts theirs. Some Chromecast devices have a guest mode that lets visitors cast without being on your home Wi-Fi network.

Why does my Chromecast keep disconnecting from Wi-Fi?

Chromecast devices can drop connection if your Wi-Fi signal is weak or if your router is far away. Move the Chromecast closer to your router, or move your router to a more central location. If your router broadcasts both 2.4 GHz and 5 GHz, connect your Chromecast to the 2.4 GHz band — it has better range. Restarting your router and Chromecast together often fixes temporary disconnections.

Can I cast from my phone while using a VPN?

Most VPNs block casting because your phone and Chromecast need to be on the same local network. Turn off your VPN before casting, or check whether your VPN has a split-tunneling option that lets you exclude the casting app from the VPN connection. Once casting starts, you can turn the VPN back on without interrupting playback.

What if my phone and Chromecast are on different Wi-Fi networks?

They must be on the same network to cast. If you're at a location with multiple networks (like a large office or apartment building), make sure both devices are connected to the exact same network name. If your Chromecast is on your home network and your phone is on a guest network, switch your phone to the main network and try again.