Updating my blackberry
To start a new operating system install, you'll need your Black Berry, an Internet-connected PC, a USB cable and about an hour and half of free time—50 minutes or an hour for the upgrade process and 30 minutes or catch-up time afterwards.
Download the installation file for the firmware link below.
Download OS 2228 for the Black Berry Z10 STL100-2 and 3 here.
Download OS 2228 for the Black Berry Z10 STL100-4 here.
The software version will be listed on the General tab.
Black Berry Desktop Manager version 4.5 If you're not running Desktop Manager v4.5, visit RIM's site and download and install the latest version of the software.