Click Settings, and then click General. First find the "Settings" application icon on the mobile phone desktop, and click to enter the mobile phone settings page to set the off-screen text. On the phone settings page, find the settings of "screen lock, password and fingerprint", and click to enter the detailed settings page. On the screen lock detailed settings page, slide the page to the bottom and find the "advanced screen lock settings" item. On the "Advanced Settings for Lock Screen" page, find the "Lock Screen Signature" option, and click to modify the text displayed on the lock screen. After the setting is completed, return to the phone screen lock page, and you can see the setting text content displayed under the time, time and date when the screen is locked.