You can use your BlackBerry smartphone when you download the BlackBerry Device Software but not while you install the software. During the installation process, your smartphone might reset or display a white screen. Do not remove the battery while the update is in progress.
If encryption is turned on, you might need to type your password at various times during the installation process.
Research In Motion recommends that you regularly create and save a backup file on your computer, especially before you update any software. Maintaining a current backup file on your computer might allow you to recover smartphone data if your smartphone is lost, stolen, or corrupted by an unforeseen issue.
-
Do one of the following:
- To update your software over the wireless network, on the home screen, click the
icon. If you don't have the
icon, on the home screen or in a folder, click the
Options icon.
Click
Device >
Software
Updates. - To update your software using the BlackBerry Desktop Software, from your computer, open the BlackBerry Desktop Software. Connect your smartphone to your computer.
- To update your software using a website, from your computer, visit www.blackberry.com/update. Click Check for Updates. Connect your smartphone to your computer.
- To update your software over the wireless network, on the home screen, click the
- Complete the instructions on the screen.
If you updated your software over the wireless network, to delete the previous version of software that is temporarily stored on your smartphone, on the home screen or in a folder, click the Options icon. Click Device > Software Updates. Press the 
key > View Result. Press the key > Delete Downgrade Data.