Sync your Chromecast remote by holding the back button for 10 seconds until the LED blinks, then select your Chromecast device from the list on your phone or TV

A Chromecast remote loses its connection when the batteries die, you move it out of range, or the device restarts. Pairing it again takes less than a minute and requires no special tools — just your remote, your Chromecast device, and either your phone or your TV screen.

The process is the same whether you own a Chromecast with Google TV, a Chromecast Audio, or an older Chromecast model. The remote will work when ready after pairing and stay connected until the batteries fail or you manually unpair it.

Key Takeaways

  • Hold the back button on your remote for 10 seconds until the LED light blinks white, which signals pairing mode is active.
  • Open the Google Home app on your phone or look at your TV screen, where your Chromecast will appear as an available device to pair.
  • Select your Chromecast from the list and confirm the pairing code that appears on your TV screen.
  • If pairing fails, restart both your remote and your Chromecast device, then try again.
  • A paired remote will not work if the batteries are dead, so replace them if the remote does not respond after pairing succeeds.

How to put your remote into pairing mode

Locate the back button on your Chromecast remote — it is the curved arrow in the upper left corner. Press and hold this button for 10 seconds without releasing. You will see the LED light on the front of the remote begin to blink white. This white blinking means the remote is now in pairing mode and searching for your Chromecast device.

If the LED does not blink after 10 seconds, your batteries may be dead. Replace them with fresh AA or AAA batteries (depending on your remote model) and try again. The LED should blink within a few seconds of inserting new batteries.

Select your Chromecast device on your phone or TV

While the remote is blinking, open the Google Home app on your phone or tablet. The app will show your Chromecast device as available to pair. Tap on it. If you do not see your device listed, make sure your phone is on the same Wi-Fi network as your Chromecast.

Alternatively, look at your TV screen. Many Chromecast devices display a pairing code on the screen when a remote is in pairing mode. If you see this code, you can tap it directly on your TV (if your TV supports touch) or use the Google Home app to confirm it.

Confirm the pairing code

After you select your Chromecast in the Google Home app, a four-digit code will appear on both your phone and your TV screen. Verify that both codes match. This step confirms that you are pairing the remote to the correct device and not to a neighbor's Chromecast by accident.

Once the codes match, tap Confirm or Pair on your phone. The LED on your remote will stop blinking and turn solid white or off, depending on your model. Your remote is now paired and ready to use.

What to do if pairing fails

If the remote does not appear in the Google Home app or the codes do not match, restart both devices. Unplug your Chromecast from power for 30 seconds, then plug it back in. At the same time, remove the batteries from your remote for 10 seconds, then reinsert them. Wait for your Chromecast to fully boot up (usually 1 to 2 minutes), then repeat the pairing steps above.

If pairing still fails after a restart, check that your phone and Chromecast are on the same Wi-Fi network. Some home networks separate devices onto different bands (2.4 GHz and 5 GHz) — make sure both are on the same band. If you are still stuck, try pairing from a different phone or tablet on the same network to rule out a phone-specific problem.

Why your remote stops working after pairing

A remote that pairs successfully but then stops responding usually has dead batteries. The remote will not show any signs of low battery before it stops working entirely — it straightforward goes silent. Replace the batteries with fresh ones and test the remote when ready. If it works, you are done. If it does not work after new batteries, the remote itself may be faulty and may need to be replaced.

If your remote was working and suddenly stops, and new batteries do not fix it, your Chromecast may have restarted or lost power. Unplug it for 30 seconds and plug it back in. Once it boots up, your remote should reconnect automatically without needing to pair again.

Unpair your remote if you are selling or giving it away

If you are no longer using a Chromecast, unpair the remote so the new owner can pair it to their own device. Open the Google Home app, select your Chromecast, tap the settings icon (three dots), and choose Unpair remote. The remote will no longer work with that Chromecast, but you can pair it to a different device later.

If you have lost your remote or it is broken beyond repair, you can still control your Chromecast using the Google Home app on your phone. The app offers all the same controls as the physical remote, so you can pause, play, adjust volume, and switch inputs without needing the remote at all.

Frequently Asked Questions

Do I need Wi-Fi to pair my remote?

Yes. Your phone and Chromecast must be on the same Wi-Fi network to pair the remote. If you do not have Wi-Fi, you can still control your Chromecast using the Google Home app over a mobile data connection, but you cannot pair a new remote without Wi-Fi.

Can I use one remote with multiple Chromecast devices?

No. Each remote pairs to one Chromecast device only. If you have multiple Chromecast devices in your home, you need a separate remote for each one, or you can use the Google Home app to control all of them from your phone.

What if the LED light on my remote never blinks?

A non-blinking LED usually means the batteries are dead. Replace them with fresh batteries and hold the back button again for 10 seconds. If the LED still does not blink after new batteries, the remote may be broken and may need to be replaced.

Will my remote stay paired if I unplug my Chromecast?

Yes. The pairing information is stored on your Chromecast device. When you plug it back in, your remote will reconnect automatically without needing to pair again. You only need to pair manually if you unplug the remote's batteries or if the pairing is erased.