Resetting your BlackBerry
Issue
A BlackBerry, like any mobile phone is prone bugs, malfunctions or errors.
Solution
Here's the procedure to perform a "Soft" or "Hard Reset" on your BlackBerry
Prerequisites
Make a backup of all your applications and data before resetting your BlackBerry. Use the Backup and Restore tool provided with the BlackBerry Desktop Manager app.
Soft Reset
If you are unable to sync your BlackBerry with your PC (device not detected), then you can make use of the following key combination to perform a soft reset:
Hard Reset