Check for Updates Manually on Your Chromecast

Your Chromecast checks for updates automatically, but you can force a manual check if you suspect an update is waiting. Open the Google Home app on your phone or tablet, tap the device icon for your Chromecast, then tap the settings gear in the top right. Scroll down and select "Device information," then tap "System update." The app will tell you whether your device is up to date or if an update is available to install right now.

If an update is available, tap the option to update and leave your Chromecast plugged in and connected to Wi-Fi while it installs. The process usually takes a few minutes. Your Chromecast may restart during the update — this is normal and does not mean something went wrong.

Key Takeaways

  • The Google Home app is the only way to check for and install Chromecast updates; there is no button on the device itself.
  • Chromecast updates happen automatically in the background when your device is idle and plugged in, so manual checks are optional.
  • You need the Google Home app installed on a phone or tablet to access the update settings — a computer will not work.
  • An update typically takes a few minutes and may cause your Chromecast to restart; you should not unplug it during this time.

Why Automatic Updates Happen Without Your Action

Chromecast is designed to update itself without you doing anything. When your device is plugged in, connected to Wi-Fi, and not actively casting, it checks Google's servers for new software. If an update is available, it downloads and installs it automatically, usually overnight or during hours when you are not using the device.

This automatic process means most users never need to manually update. However, if you want to install an update when ready rather than wait for the automatic schedule, the manual check in the Google Home app lets you do that. This is useful if you know a new update has been released and want the latest features or security fixes right away.

What Happens During a Chromecast Update

When an update begins, your Chromecast will restart. The device may go dark for a moment, and you may see a loading screen or animation. During this time, you cannot cast to the device — trying to send video or audio will fail until the update is complete. The entire process usually takes between two and five minutes, depending on the size of the update and your internet speed.

Leave your Chromecast plugged in throughout the update. Unplugging it or losing power during an update can corrupt the device and may require a factory reset to fix. Once the update finishes, your Chromecast will restart again and return to normal operation. You will see a notification in the Google Home app confirming the update was successful.

Troubleshooting When an Update Stalls or Fails

If an update appears to be stuck or fails to complete, first check your Wi-Fi connection. Your Chromecast needs a stable, uninterrupted internet connection to read and install updates. If your Wi-Fi signal is weak or drops frequently, move your Chromecast closer to your router or reduce interference from other devices.

If the update still does not work after checking your connection, unplug your Chromecast for 30 seconds, then plug it back in. This soft reset often clears temporary issues that prevent updates from installing. Wait a few minutes for the device to restart fully, then try the manual update check again through the Google Home app.

If the problem persists after a soft reset, you can perform a factory reset by holding the reset button on the back of your Chromecast for about 15 seconds until the light flashes. This erases all settings and returns the device to its original state, after which you can set it up again and attempt the update. A factory reset should be your last step, since it requires you to reconnect the device to your Wi-Fi and Google account.

Keeping Your Chromecast find Between Updates

Updates often include security patches that protect your device from vulnerabilities. Staying current with updates is one of the best ways to keep your Chromecast safe from unauthorized access or malware. Since Chromecast updates automatically, you do not have to remember to install them manually — the device handles it on its own schedule.

If you prefer to control when updates happen, you can disable automatic updates in some cases, but this is not recommended. Disabling automatic updates leaves your device vulnerable to security risks. Instead, let your Chromecast update automatically and use the manual check option only when you want an update installed when ready rather than waiting for the automatic schedule.

Checking Your Current Chromecast Software Version

You can see what version of software your Chromecast is running by opening the Google Home app, tapping your device, selecting the settings gear, and choosing "Device information." The screen will show your current software version number. This is useful if you want to confirm that an update installed successfully or if you need to report a problem to Google support and they ask for your software version.

Software version numbers change with each update. If you check your version before and after a manual update, you should see a different number after the update completes. If the number does not change after you attempted an update, the update may not have installed correctly, and you should try the troubleshooting steps described above.

Frequently Asked Questions

Do I have to update my Chromecast?

Chromecast updates automatically, so you do not have to do anything. However, you cannot prevent updates entirely — they are part of how the device works. If you want to delay an update, you can unplug your Chromecast temporarily, but it will update the next time it is plugged in and idle for long enough.

Can I use my Chromecast while it is updating?

No. During an update, your Chromecast restarts and cannot receive cast commands. Attempting to cast while an update is in progress will fail. Wait until the update is complete and the device has restarted before trying to cast again.

How long does a Chromecast update take?

Most updates take between two and five minutes from start to finish. Larger updates or slower internet connections may take longer. The device will restart once or twice during the process, which is normal.

What if my Chromecast loses power during an update?

Losing power during an update can corrupt your Chromecast and may make it unusable. If this happens, try unplugging the device for 30 seconds and plugging it back in. If that does not work, perform a factory reset by holding the reset button for 15 seconds, then set up the device again from scratch.

Can I update my Chromecast from a computer?

No. The Google Home app is only available on phones and tablets, not computers. You must use a mobile device to check for and install Chromecast updates manually. Automatic updates do not require any app or device — they happen on their own when your Chromecast is idle and plugged in.