Also you might want to try deleting anything you don't use in your BlackBerry Smartphone. Things like photos, messages, emails stuff like that can also take up memory that you might not have to. You can also change your settings in your messages and calendar to auto delete after X amount of days. Another thing you can do is to go to Settings>Options>Advanced Options>Applications and then delete any applications you don't use. An example could be BlackBerry Sample Video. There are lots of things you can do to open up memory on your phone. Check out this link on the BlackBerry support website:
BlackBerry Search Results
Hope this helps :D