10-18-2012 12:31 PM
Hi himike and welcome to the BlackBerry Support Community Forums!
I would suggest performing a backup of your BlackBerry® smartphone then reloading the software as shown in the article below:
KB11320 - How to perform a clean reload of the BlackBerry Device Software using BlackBerry Desktop M...
KB19915 - How to perform a clean reload of BlackBerry smartphone application software using BlackBer...