The screen of LeTV 2 shows that the text message is missing. How to get it back?

To set up the notification bar, the steps are as follows:

Step 1: Open the phone and find Settings to open.

Step 2: As shown in the figure below, find "Notification Management" in "Settings" and click to enter.

Step 3: As shown below, click the settings icon on the right side of the screen.

Step 4: Find the information and click to enter.

Step 5: As shown in the picture below, according to your own needs. Turn on Allow notifications or Prioritize notifications.