• Download via MegaUpload: OS 5.0.0.428 for the BlackBerry Storm2 9550
• How To:
  • Backup And Restore Your BlackBerry
  • Upgrade your BlackBerry Operating System (OS)

Please report any feedback/findings in the comments.

DISCLAIMER: Install at your own risk. This is Leaked/Beta software that is not guaranteed to be stable, and therefore will not be supported by RIM or your wireless carrier should you run into some problems. As a precaution, if you decide to upgrade, it is highly recommended that you make a backup before using this software. If you are not comfortable using Leaked/Beta software you should probably wait for the next official release. *