Use the BlackBerry Administration Service to delete device data and disable the device before assigning the device to a new user

If you perform this task, you are deleting all device data permanently and disabling the device. You may have to reinstall the BlackBerry Device Software before you assign the device to a new user.
  1. Connect the BlackBerry device to the computer that you used to log in to the BlackBerry Administration Service.
  2. If you receive a prompt, type the device password.
  3. In the BlackBerry Administration Service, on the Devices menu, click Attached devices > Manage current device.
  4. Click Delete all device data and disable device.
  5. Click Yes – Delete all device data and disable device.
  6. If necessary, reinstall the BlackBerry Device Software using the application loader tool in the BlackBerry Administration Service, BlackBerry Desktop Software, or BlackBerry Web Desktop Manager.
  7. Activate the device.
After you finish: For more information about installing the BlackBerry Device Software, see the BlackBerry Device Software Update Guide.