Can I change the lock screen of Apple's mobile phone only after jailbreaking? When the screen is locked, SMS will not be displayed.

You can also cancel the display without jailbreaking.

The setting method is as follows:

1. Open the settings in the phone.

2. After opening the settings, click the Open Notification option in the opened interface.

3. After entering the notification interface, click the open information option.

4. In the open interface, turn on the switch of this option in the notification center above.

5. Then select the reminder style as reminder.

6. Then pull the interface to the bottom and close the button displayed on the lock screen.