ViewSonic VS19390 User Manual page 76

Lock Screen Password
Set a screen lock password and enable screen lock.
NOTE: If the password is forgotten, use the remote control and press
INPUT-0-2-1-4 to restore the password to default.
To set a screen lock password:
1. Go to: Settings > System > System Tools > Lock Screen Password for screen lock
options, or select the Screen Lock icon (
2. Select Set Password, and input a new four (4) digit password. Then select OK.
Now when selecting the Screen Lock icon (
) in the All Apps list.
), the screen will be locked.
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