The wireless data synchronisation feature is designed to synchronise organiser data (contacts, calendar entries, tasks and memos) between a subscriber's BlackBerry® smartphone and the email application on their computer over the wireless network.

The wireless email reconciliation feature is designed to reconcile email between the subscriber's smartphone and the email application on their computer over the wireless network. When a subscriber files or deletes email messages on their smartphone, these email messages should be filed or deleted in their email application. Likewise, any changes that they make to email message in the email application on their computer should be reflected on the smartphone.

In rare cases, if a smartphone does not recognise fields in a contact, calendar entry or email account, some data or email cannot be synchronised or reconciled.

If wireless data synchronisation or wireless email reconciliation is not available on the smartphone or if the subscriber turned off these features, the subscriber can use the synchronisation tool of the BlackBerry® Desktop Software to synchronise their organiser data and email. For more information, see the Help in the BlackBerry Desktop Software.

Research In Motion recommends that you regularly create and save a back-up file on your computer, especially before you update any software. Maintaining an up-to-date back-up file on your computer might allow you to recover device data if your device is lost, stolen or corrupted by an unforeseen issue.