How does Huawei mobile phone adjust the back button to the screen?

Take Huawei Mate 40 mobile phone as an example:

Go to Settings > System and Updates > System Navigation Mode and select the three-button navigation on the screen.

After opening the three-button navigation on the screen, you can:

1, Enter key: click to return to the previous menu or exit the application.

2. Home button: Click to return to the home screen.

3. Recent key: Click to enter the multi-task management interface.

You can also enter more settings and perform more operations according to your own usage habits:

1. Select a different navigation bar combination style.

2. Turn on the navigation key hide switch, and hide it when the navigation key is not used.

3. Click the drop-down notification key (if the selected navigation key combination contains the drop-down notification key), and then click to open the notification panel.