Sounds like the Desktop Manager upgraded the device for you. By default when it updates the Device it creates a backup.
Do a search on your PC for "*.ipd" (w/o the quotes) this will find any backups of you device. The file format should be LoaderBackup(Date).ipd or something along those lines.
If you find the file just go threw the restore function.
8830 -> 8330 -> 9550 -> 9650
Just think about how far BlackBerries have come from then till now... And what else is coming.
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