Use Backup and Restore to Clear Data - BlackBerry®

 Caution Before clearing any information from the device, it is strongly recommended to backup the data. Please refer to Using Backup and Restore to backup data - BlackBerry.

  1. Connect the device to the computer using a USB cable or cradle.
  2. Launch the BlackBerry Desktop Manager.
    Note Click Start > All Programs (Programs)  > BlackBerry > Desktop Manager.
  3. Click Backup and Restore.
  4. Click Advanced.
  5. From Device Databases (located on the right side), select the desired databases then click Clear.
    Note To select multiple databases, press and hold the Ctrl key while clicking each database.
  6. Click OK.
  7. Click Close.
  8. Click Close.

To restore data to the device please refer to Using Backup and Restore to restore data - BlackBerry.

Here's how to use back up and restore to clear data on your Blackberry.