Huawei Mate 9 - Manual (Page 38)

1
Open Settings.
2
Select Screen lock & passwords > Lock screen signature.
3
Enter your lock screen signature and touch Save.
Your lock screen signature will be displayed on the lock screen.
Notification panel and status bar
About the status bar
Use the status bar to access the notification panel and check your phone's status.
Configuring the notification panel and status bar
Configuring the notification panel from the lock screen
1
Turn on the screen and swipe down from the status bar to open the notification panel.
Screen and Display
32