BBASK is a windows application with many funtions for modifiying BlackBerries.
Backup & Restore Tab
The Backup and Restore tab offers the 4 features needed to successfully load a new operating system
3rd Party App Backup
BBSAK is one of the only apps currently available that allows you to create a backup of every 3rd party app on your device. In the newest version, this function will even backup 3rd party apps created by RIM, such as Twitter or Facebook.
ThumbWipe Device, is a tool used to completely remove everything on your device including the operating system, leaving your phone at a 507 error screen. This function can be used to restore a "bricked" blackberry. Please make sure to backup everything you need before running this feature.
ThumbLoad OS (Operating System) is a tool that allows you to install an operating system to your device. New to BBSAK 1.8.5 we have given then users the ability to select which OS you want! This even includes downgrading your OS without uninstalling newer OS's from your computer.
Restore 3rd Party Apps
ThumbThe Restore Apps function allows the user to select the backup JAD that was created by the Backup Apps function in BBSAK. Once the JAD is selected BBSAK will install all the apps included in your backup, back on to your blackberry. Please note your phone will reboot after this function is complete.