Why doesn't Google Assistant launch when I say, "‍OK Google"‍?

Google Assistant is available for phones running Android 6.0 and later. Before you can say "‍OK Google"‍ to launch Google Assistant, you need to set it up and teach it to recognize your voice. To set up Google Assistant, connect your phone to the Internet and then press and hold HOME /Fingerprint scanner.

For Google Assistant to respond to "‍OK Google"‍ and voice commands, Battery saver in Settings must be turned off.

To check if Battery saver is turned off:

1. Go to Settings.
2. Tap Battery > Battery saver.
3. If Battery saver is on, tap Turn off now.
   Tip: Tap the On/Off switch next to Turn on automatically to always keep Battery saver off.