How to add a screen lock shortcut icon for Samsung I9300

After upgrading Android 4.1.2 on the GT-I9300 phone, the shortcut icons in the screen lock interface are increased from 4 icons to 5. To add the fifth icon, follow these steps:

1. Click application on the standby page ].

2. Click set ].

3. Slide the screen up and click lock screen ].

 
4. Click lock options ].

5. Click the shortcut key ].

6. Click the "+" icon.

7. Select the shortcut key you want to add in the list. Here, select calculator as an example.

 

After the preceding operations, the shortcut key icon is added to the screen lock shortcut list.