What if Xiaomi 10 mobile phone can't see the information?

Because I didn't open the information reminder in the notification bar in the mobile phone permission, I need to reset it in the settings. Mobile phones are equipped with personal and safety notification centers. Check whether the switch displayed in the notification bar is turned on. Mobile phone settings, applications, display notifications, and see if the display notifications have been cancelled. Go to Settings, Personal, Security, and determine whether to join the pure background. Allow display in settings, notification and status bar, and notification management. If you need a floating window, you need to go to the security center and open the floating window in the rights management. By default, floating windows are closed.