Chromecast updates itself automatically most of the time
Your Chromecast downloads and installs firmware updates on its own, usually overnight when it is plugged in and connected to Wi-Fi. You do not need to do anything — the device checks for updates regularly and applies them without interrupting your use during the day.
If you want to check whether an update is available right now, or force an update to install sooner, you can do that through the Google Home app on your phone. The process takes a few minutes and requires your Chromecast to stay plugged in and connected to the same Wi-Fi network as your phone.
Key Takeaways
- Chromecast automatically downloads and installs updates when plugged in and connected to Wi-Fi, usually at night.
- You can check for updates manually using the Google Home app by opening the device settings and selecting "Device information."
- During a firmware update, your Chromecast will restart and be unavailable for casting for a few minutes.
- If an update fails or your Chromecast becomes unresponsive, unplugging it for 30 seconds and plugging it back in usually fixes the problem.
How to check for updates in the Google Home app
Open the Google Home app on your phone or tablet and make sure you are signed into the same Google account you used to set up your Chromecast. Tap and hold the Chromecast device tile, then tap the gear icon in the top right corner to open settings.
Scroll down and tap "Device information." At the top of this screen, you will see the current firmware version. If an update is available, a button labeled "Update" will appear. Tap it to start the read and installation. Your Chromecast will restart during this process, which usually takes two to five minutes.
Do not unplug your Chromecast while an update is running. Leave it plugged in and connected to Wi-Fi until the process finishes and the device restarts on its own.
What happens during a firmware update
When an update begins, your Chromecast will stop responding to casting requests. The screen connected to your Chromecast may go blank or show a loading indicator. This is normal and expected.
The update itself usually takes between two and five minutes, though larger updates can take longer. Once the installation finishes, your Chromecast will restart automatically. You will know it is ready when the home screen reappears or the device responds to casting again.
Troubleshooting a stuck or failed update
If your Chromecast seems frozen during an update, or if the update fails and the device will not respond, unplug it from power for 30 seconds. Plug it back in and let it restart. In most cases, this resets the device and allows it to complete the update on the next cycle.
If the device still will not update after a restart, check that your Wi-Fi connection is stable and that your Chromecast is within normal range of your router. Weak or intermittent Wi-Fi can interrupt the read. Move the device closer to the router if possible, then try checking for updates again.
If you continue to have trouble, you can perform a factory reset by holding the reset button on the back of your Chromecast for about 15 seconds until the light blinks. This erases all settings and returns the device to its original state, but it also forces a fresh firmware installation when you set it up again.
Why your Chromecast needs firmware updates
Firmware updates add new features, fix bugs, and patch security issues. Google releases updates regularly to keep Chromecast devices working smoothly with newer phones, tablets, and streaming services.
Staying up to date also ensures your device works with the latest versions of apps like Netflix, YouTube, and Spotify. Older firmware versions may eventually stop working with newer app versions, so keeping your Chromecast current prevents casting problems down the road.
How to know if your Chromecast is up to date
The easiest way is to open the Google Home app, tap and hold your Chromecast device, tap the gear icon, and select "Device information." The firmware version number appears at the top. You can compare this to the latest version listed on Google's support pages, though Google does not always publish version numbers publicly.
If no update button appears in the Device information screen, your Chromecast is already running the latest firmware available for your model. Different Chromecast models (standard, Ultra, with Google TV) receive updates on different schedules, so two devices in your home may be on different versions.
Frequently Asked Questions
Can I use my Chromecast while it is updating?
No. During a firmware update, your Chromecast will not respond to casting requests. The update usually takes two to five minutes, so plan accordingly if you are in the middle of watching something.
What if the update keeps failing?
Restart your Chromecast by unplugging it for 30 seconds, then plug it back in. Check that your Wi-Fi is stable and that the device is within range of your router. If it continues to fail, try moving the Chromecast closer to the router and attempt the update again.
Do I need to do anything to prepare for an update?
No preparation is needed. Just make sure your Chromecast is plugged in and connected to Wi-Fi. You do not need to close apps or stop casting beforehand — the device will handle the update automatically.
Will updating erase my settings or saved networks?
No. A firmware update preserves your Wi-Fi connection, Google account, and all settings. Your Chromecast will work exactly as it did before, just with the latest software.
How often does Chromecast get firmware updates?
Google releases updates periodically throughout the year, but there is no fixed schedule. Most Chromecast devices receive at least a few updates annually. Your device checks for updates automatically, so you do not need to monitor release dates.