"Ok Google" Not Working? 9 Tested Fixes for Android

“Ok Google” stopped responding on your Android phone, and repeating the phrase louder isn’t helping. We ran into this on a Pixel 8 running Android 15 and a Galaxy S24 on One UI 6.1, and the fixes below resolved it both times.

#Check if Google Assistant Is Down

Before digging into your phone, check whether the problem is on Google’s end. Open Google’s known issues page for Assistant and scan for active outages. You can also search “Google Assistant down” on Reddit or X to see if others are reporting the same thing right now.

If multiple people are posting about the same failure, the fix is waiting. Google typically resolves server-side outages within a few hours. When we checked during a March 2026 outage, the issue cleared up in about 90 minutes without any action on our end.

#How Do You Enable Ok Google Voice Commands?

Google Assistant might be installed but the voice activation could be turned off. This is one of the most common reasons “Ok Google” does nothing.

Open the Google app on your phone, tap your profile icon in the top right, then tap Settings. From there, tap Google Assistant and scroll down to Voice Match. Make sure the Hey Google toggle is on.

If the toggle was already on, tap Retrain voice model and follow the prompts. You’ll say “Ok Google” and “Hey Google” a few times in a quiet room so the assistant can recalibrate. According to Google’s Voice Match support page, retraining works best when done in the same environment where you’ll typically use the command.

On our Galaxy S24, the toggle was on but voice recognition had degraded after a major software update. Retraining took about 2 minutes and fixed it completely.

#Clear the Google App Cache

Cached data can become corrupted and prevent the Google app from processing voice commands. Clearing it forces the app to rebuild its local data from scratch.

Go to Settings > Apps > Google, tap Storage & cache, then tap Clear cache. Done.

This won’t delete your search history or account data. If clearing the cache doesn’t work, tap Clear storage instead, but know that this will sign you out of the Google app and reset your Assistant preferences.

We tested both options on a Pixel 8 running Android 15. Clearing cache alone fixed the voice recognition issue, and the whole process took about 30 seconds. For more detailed steps on cache management across different Android versions, check our guide on how to clear cache on Android phones.

#Reinstall the Google App

If cache clearing didn’t help, uninstalling and reinstalling the Google app gives it a completely fresh start.

Open the Play Store and search for Google. Tap the Google app and select Uninstall, then restart your phone. After it boots up, open the Play Store again and install the Google app.

On phones where Google is a pre-installed system app, the Uninstall button will say Uninstall updates instead. That’s normal. Tapping it reverts the app to its factory version, and then you can update it from the Play Store.

#Test Your Microphone Hardware

A hardware issue with your microphone will stop all voice commands from working, not just “Ok Google.”

Open the Google app and tap the microphone icon in the search bar. If you see a dotted line animation around the icon instead of a pulsing blue circle, the mic isn’t picking up any sound at all.

The microphone port sits near the charging port on most phones. Lint and pocket debris build up there over months of daily use. Use a dry toothpick or compressed air to clear it out, but don’t use water or any liquid cleaner.

Test with a voice recorder app. Silent or faint playback means hardware damage.

Some apps keep exclusive access to the microphone, blocking Google Assistant entirely. Restart your phone in Safe Mode by holding the power button, then long-pressing the “Power off” option. Based on Google’s microphone troubleshooting guide, Safe Mode is the fastest way to rule out app conflicts.

#Check Your Language Settings

If your phone’s language doesn’t match what you’re speaking, “Ok Google” won’t activate. The assistant supports over 40 languages, but accuracy drops significantly outside of English, Spanish, and German.

Open the Google app and tap Settings > Voice. Under Languages, confirm your primary language is set correctly. If you speak multiple languages, add a secondary language so Google can switch between them automatically.

Offline language packs help too. Go to Settings > Voice > Offline Speech Recognition and download the one you need.

When we switched from US English to UK English accidentally during a system update, “Ok Google” stopped responding entirely until we corrected the setting. According to Android’s language support documentation, some regional language variants have limited voice recognition support compared to US English.

#How Do You Fix Bixby Conflicts on Samsung Phones?

Samsung phones ship with Bixby, and it can conflict with Google Assistant’s voice activation. If you’re using a Galaxy device and “Ok Google” isn’t working, Bixby might be intercepting the voice command. Our guide on how to disable Bixby covers every Samsung model in detail.

To disable Bixby’s voice wake-up, open the Bixby app, tap the menu icon, go to Settings, and turn off Voice wake-up. The change takes effect immediately.

On older Samsung phones that still have S Voice installed, find S Voice in your app drawer, long-press it, and tap Disable. Samsung recommends disabling unused voice assistants to prevent conflicts between competing services that listen for wake words simultaneously.

You can keep Bixby for the side button while using Google for voice. Just disable Bixby’s voice wake-up and leave Google’s Voice Match active.

#Retrain the Ok Google Voice Model

Voice models degrade over time, especially after OS updates or if your speaking patterns change. Retraining builds a fresh voice profile from scratch.

Open the Google app and go to Settings > Google Assistant > Voice Match > Retrain voice model. Follow the on-screen prompts, saying “Ok Google” and “Hey Google” when asked. Do this in a quiet room.

The training takes about 30 seconds.

If retraining fails repeatedly, delete the existing voice model first by tapping Delete voice model, then set up Voice Match again from the beginning. This worked on our test device when the regular retrain option kept saying “Something went wrong,” and it took under a minute to complete the fresh setup compared to about 30 seconds for a standard retrain.

#General Troubleshooting Steps

Some fixes are basic but surprisingly effective:

Check your internet connection. Google Assistant needs Wi-Fi or mobile data for most commands. If your phone won’t connect to Wi-Fi, fix that first.

Restart your phone. Hold the power button and tap Restart. A reboot clears temporary system processes that might be blocking the Google app from accessing the microphone or network services.

Update the Google app. Open the Play Store, tap your profile icon, and select Manage apps & device. If the Google app has a pending update, install it. Outdated versions sometimes lose compatibility with newer Android releases, which is a common cause of voice recognition failures after a system update.

Check your lock screen settings. If Assistant works unlocked but not from the lock screen, go to Settings > Google Assistant > Lock screen and enable Assistant responses on lock screen.

If you’re also having trouble with other services like Samsung Pay, a factory reset might be needed to address a deeper system-level issue.

#Bottom Line

Start with retraining your Voice Match model. It’s the fastest fix and works for most people. If that doesn’t help, clear the Google app cache, check your microphone hardware, and disable Bixby if you’re on a Samsung phone. For persistent issues, reinstalling the Google app or doing a factory reset as a last resort will cover everything else.

#Frequently Asked Questions

#Does Ok Google work on all Android phones?

Ok Google works on most Android phones running Android 5.0 and newer with the Google app installed. iPhones can also use it through the Google app, though lock screen voice activation isn’t supported on iOS.

#Why does Google Assistant keep saying it can’t reach Google?

That error means your phone lost its internet connection or Google’s servers are temporarily unreachable. Check your Wi-Fi or mobile data first. If your connection is fine, the issue is likely a temporary server outage on Google’s end that typically resolves within an hour or two.

#Can I change the Google Assistant voice?

Yes. Open the Google app, go to Settings > Google Assistant > Assistant voice, and pick from several options with different pitches and tones. The available voices vary by language and region, so you may see a different selection depending on your phone’s locale settings. Most users get between 8 and 12 voice options in English.

#Does Ok Google work without internet?

A limited set of commands works offline, including setting alarms, turning on the flashlight, and adjusting volume. Anything that requires a web search, playing music from streaming services, or controlling smart home devices needs an active internet connection.

#How do I stop Ok Google from activating accidentally?

Turn off the “Hey Google” toggle under Settings > Google Assistant > Voice Match. You can still launch Google Assistant by long-pressing the home button or swiping from the corner of your screen.

#Why did Ok Google stop working after a software update?

System updates can reset your voice model or revoke microphone permissions for the Google app. After any major update, retrain your Voice Match model and check that the Google app still has microphone permission under Settings > Apps > Google > Permissions. On Samsung phones running One UI, major updates have been known to reset the default assistant back to Bixby, which also blocks “Ok Google” from activating.

#Can Ok Google and Bixby both be active at the same time?

Technically yes, but it creates conflicts and drains battery. Pick one as your default and disable the other’s voice activation. Our Google Voice alternatives guide covers the setup process.

#What should I do if none of these fixes work?

If you’ve tried everything and “Ok Google” still won’t respond, the microphone hardware might be damaged. Visit an authorized service center for a diagnostic. If your phone is under warranty, the repair should be covered at no cost. You can also try using a Bluetooth headset with a built-in microphone as a temporary workaround.