Check the device and settings on your phone
To be able to use the
You must have the latest version of Google App. So, it is good to go to Google Play and download Voice Access or update it.
Start using Google Voice Access
Open your device’s Settings and then go to App Settings.
Tap on Accessibility and then tap on ‘Voice Access’.
At the top of the page, you will find the On/Off switch.
You need to turn the Voice Access on
If you find the Voice Match on, try saying “Ok Google.”
If you see that your Voice Match is not on, you can open the notification shade and go to ‘Touch to start’ Voice Access Notification’.
Talk out a command, something like "Open Gmail."
Now you are through with the Google Voice Assistant.
Note: when you start using the Google Voice Access, for the first time, you will find a guide to "Ok Google" settings which will guide you through the setup process for a full hands-free experience. You will also come across an interactive tutorial to learn how Voice Access works.