Reinstall Blackberry Curve 8520 OS

Suddenly, I've got this error once I turn on my Blackberry Curve 8520.
Uncaught exception Index 3 >= 3
Various reasons might occurs for this error such as:

• BB cannot handle the page you are trying to load
• cause by a third-party browser (opera mini or bolt)
• cause by newly installed application
• OS corrupted
  

Then all of a sudden, this white page occurs, only showing the message:

App Error 523
Reset

It means "System Process Died".



Simple, I just need to reload/reinstall new operating system (OS) to my BB. I will post the step here once I succeed to do so (got to find the cable first... huh). And I will try to use new OS version v5.0.0.681...