Samsung Galaxy S III User Manual page 377

Note: These options vary depending on the selected Lock settings.
Customizing Your Lock Screen Shortcuts
Your device also provides up to 4 application shortcuts that can be
used to quickly access an application right from the lock screen.
Important! To use these shortcuts, your Screen Lock feature can only
be set to either Swipe or None.
To open a shortcut from the lock screen:
In a single motion, swipe your finger over the on-screen icon
and towards the top of your device. Your device will unlock and
you will be taken immediately to the application.
To edit these Lock screen shortcuts:
1. From the main Settings page, tap Lock screen
options.
2. In a single motion touch and slide the Shortcuts slider to the
right to turn it on.
3. Tap the Shortcuts field to activate the menu.
4. Tap a shortcut icon you wish to replace.
5. From the select application menu, tap a replacement
application.
6. Press to return to the previous screen.
Changing Your Settings
Lock screen
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