The duration of the update process can range from 15 minutes to 2 hours, depending on the type of update, the amount of device data, and the number of applications on your BlackBerry device. You cannot use your device or make emergency calls when the update is in progress. During the update, your device might reset or display a white screen momentarily - this is expected. Do not remove the battery while the update is in progress.
You can update your BlackBerry Device Software over the wireless network if a Wireless Update icon appears on the Home screen of your device. You can also check for updates manually through the device options. The available update might be a complete software update, or a partial software update only. If the available update is a complete software update, your device data is backed up on your device and restored during the installation process. Depending on the options set by your wireless service provider or administrator, you might not be able to update the BlackBerry Device Software over the wireless network. Depending on your wireless service provider, extra fees might apply when you download the update to your device.
If your device is associated with the BlackBerry® Internet Service, you can update the BlackBerry Device Software by connecting your device to your computer and visiting www.blackberry.com/update.
If you have installed the BlackBerry® Desktop Software on your computer, you can update the BlackBerry Device Software using the BlackBerry Desktop Manager. For more information about updating the software using the BlackBerry Desktop Manager, see the online help that is available in the BlackBerry Desktop Manager.