1. Your BlackBerry ID is a master key to BlackBerry products, sites, services and applications such as BlackBerry World and BlackBerry Messenger.
   
2. From the home screen, swipe down from the top of the screen to reveal the Device Settings menu.
   
3. Tap Settings.
   
4. Scroll to, then tap Blackberry ID.
   
5. If you have a BlackBerry ID tap Sign In, if not tap Create New and follow the on-screen prompts.
   Note: For this demonstration, tap 'Sign In'.
   To create or manage your BlackBerry ID from a computer, go to www.us.blackberry.com.
   
6. Enter the account information, then tap Submit.
   
7. Tap the Back icon to return to the system settings.
   Note: A master reset is required to remove your BlackBerry ID from the phone. See 'Reset Device' for details.