How to troubleshoot 'Hey Google' and reconfigure Voice Match

Start by separating three settings that can be easily confused: that the Google Assistant is enabled, that 'Hey Google' detection is turned on, and that Voice Match is configured. Google's guide recommends checking these elements when the Google Home app does not respond to the wake phrase on an Android phone or tablet. You do not need to reset the phone to verify these controls.

Open Google Home and first check the status of the Assistant. If it is disabled, enable it; then review 'Hey Google' and Voice Match. On devices with the built-in Assistant, such as speakers or displays, also check that the microphone is not muted. If the problem occurs on a phone, do not assume that the physical controls of other devices apply to your model: look for the corresponding microphone permission or control on the phone itself.

In Google Home, open Settings > Google Assistant > Voice Match and ensure that Voice Match is enabled for the relevant home or device. The path and names may vary between versions, but Google indicates that if you cannot find 'Hey Google', you should first enable the Assistant. It is advisable to follow this order: voice detection does not replace the main service.

Check the 'Hey Google' switch and try the phrase again. If you want the Assistant to respond while the phone is locked, separately review the Assistant setting on the lock screen: this is a different condition from enabling voice detection. Do not enable access from the lock screen as a first measure if you only want to recover activation with the phone unlocked.

If 'Hey Google' is enabled but the Assistant does not recognize your voice as before, you can recreate the model. In Google Home, go to Assistant and Voice Match settings; in Google's help, the option appears as Voice model > Recreate voice model. Follow the on-screen instructions to register your voice again. The exact name of the control may change depending on the interface.

Voice Match is used so that the Assistant can recognize a voice and offer personalized results. Therefore, retraining it is relevant when recognition or identification fails, but it does not fix a muted microphone or a feature blocked by the account. After completing the instructions, try 'Hey Google' again. If it only fails when the device is locked, review the lock screen setting instead of repeating the training without a specific reason.

First, confirm that the Assistant is active and that you are looking at the correct home or device in Google Home. Voice Match can be configured for a home or for specific compatible devices; if a device does not appear, Google recommends checking that it has been added to the linked home. Configuration depends on the device and account, so it is not safe to assume that all phones will display identical menus.

There is an important exception for managed accounts: Google warns that in Google Workspace for Education, the administrator may have disabled the 'Hey Google' activation. In that case, consult with the administrator; reinstalling apps or changing phone settings does not remove an organization restriction. Google also points out that available languages depend on the device, so the option may not be presented the same way on all devices.

The practical difference lies in what happens after you speak. If the device does not detect the wake phrase at all, first check if the microphone is muted or if the 'Hey Google' control is off. If the Assistant activates but does not identify your voice or offer personalized results, check Voice Match and, if applicable, recreate the model. These are different checks: a voice model cannot compensate for a disabled microphone.

Google recommends checking the microphone switch on speakers, displays, and watches with the built-in Assistant. On these devices, also verify that they are turned on and connected to the Internet via the same Wi-Fi network as the mobile phone when applicable. For an Android phone, a prudent test is to check if the microphone works in another app that can record audio and review the Google app permissions in system settings. If it does not capture sound in other apps either, the problem points to the microphone or its permissions, not specifically to Voice Match.

If the previous checks do not resolve the problem, identify which part is failing before changing more settings: Assistant activation, 'Hey Google' detection, voice recognition, or access from the lock screen. If you use a Google Workspace for Education account, ask the administrator if the feature is allowed. For microphone failures that repeat in different apps, consult the phone manufacturer's support; for an account restriction, it is appropriate to go to the administrator.

Avoid destructive measures such as clearing app data or resetting the phone as a first resort: Google's help for 'Hey Google' focuses on checking features, Voice Match, and the microphone. A factory reset deletes device data and is not a necessary step to recreate the voice model. Try reversible changes first, one by one, and recheck the behavior after each adjustment. This way, you will know which action helped and avoid modifying settings that were not related to the failure.