How to turn off the screen of oppoa9?

Cancel mode of SMS notification/pop-up;

1. Enter the Info app > message or notification interface, click ":"in the upper right corner, and select "Settings > Notification Management" to turn on or off various notification reminders of information according to actual needs.

2. "long press" information "app > application information > notification management" to turn on or off the notification reminder of information according to actual needs.

3. go to settings > (application) > application management > application list > (click ":"in the upper right corner and select "display system settings") > find the information app, click > notification management, and turn on or off information notification according to actual needs.

This answer applies to all OPPO models.