When you register an email address with BlackBerry® Messenger, BlackBerry Messenger backs up changes to your contacts, profile, and group membership over the wireless network to a BlackBerry Messenger server that is operated by or on behalf of Research In Motion or its affiliates.

Depending on your wireless service plan or organization, this feature might not be supported.

1. On the Home screen or in the Instant Messaging folder, click the BlackBerry Messenger icon.
2. On the contact list screen, press the Menu key.
3. Click Options.
4. Click Back Up.
5. Click Back up files remotely.
6. Perform one of the following options:
   • If you only have one email address that is associated with your device, click Register.
   • If you have more than one email address that is associated with your device, highlight an unregistered email address. Press the Menu key. Click Edit Email Status. Click Register.
7. Click OK.