1. In traditional virtual navigation mode, you can press and hold the Home key to display the microphone icon (by default, the Home key is displayed. For some models, you can select Settings > Fingerprint > One-click Direct Access to Bind Fingerprint as the voice assistant).
2. In gesture navigation mode, you can start the voice assistant by sliding from the left and right edges of the screen to the side areas.
The above accounts must be logged in to the Google system.