3. Install handset software
Now that you’ve installed the Desktop Manager and Handheld software on your PC, you’re good to go. Plug in your BlackBerry via USB, launch the desktop software and Desktop Manager should detect that your device is able to be upgraded. Just follow the wizard that pops up, and the Desktop Manager will back up all of your contact and e-mail, wipe your device, install the new operating system, and restore your data from backup. Keep in mind this process will reset many of your applications, so you might have to put in activation keys and the like back in once everything’s done.
OS 4.5 has quite a few new features that make it worth the jump.
Be warned, however, that not all developers are as quick to patch up their software as you are to upgrade yours. Any third-party apps that you had installed might not be designed for the new operating system, so you may need to pick up a newer copy if it’s available. By the same token, a new operating system could also open up some software designed to take advantage of the new features or layout.
Been having any problems with your install? Leave a comment here, and we’ll do our best to fix the issue. Also, we’ll be updating the guide as new operating systems come out, complete with the freshest download sites.
Props to BlackBerryInsight for the super-sweet carrier software list.