Blocking mode on the samsung galaxy note 4 is very useful for blocking incoming calls and notifications. You can even set this up for certain times of the day or night when you don’t want to be bothered. To use blocking mode on the samsung galaxy note 4 first go into the settings. Next scroll down to personalization and you will see the option blocking mode. From in here you will be able to turn this feature on, and set it to your own preferences.