Don't know if this can help

Saw some stuff online

http://helpblog.blackberry.com/2012/02/error-523-jvm-blackberry/


http://supportforums.blackberry.com/t5/BlackBerry-Curve/App-error-523-reset/td-p/1743575



You may need to have a pc with bb desktop software

How to Correct App Error 523

But this occurrence can actually be prevented and you simply have to know how avoid such errors if you own a BlackBerry. If you have the right software installed and running in your mobile phone, such application error will not be experienced. App error 523, may appear to a serious problem for those who are new to using the BlackBerry or those who have no idea that this is just a simple application error. So how does one resolve such error? Sometimes, a hard reset of the smart phone will bring it back to work. Re installation of the software would normally correct the error. So whenever you buy a gadget, always ask for the most current and appropriate software version to be installed in it for utmost functioning. In this case of the BlackBerry, re installation of the BlackBerry Device Software should correct the application error. But in cases when app error 523 continues to appear or persistently disturb the functioning of your smart phone even if it is already running the latest version of the BlackBerry Device Software, then it must be further looked into by a BlackBerry accredited service personnel. It is important that the problem is diagnosed correctly so that appropriate interventions can be made.
Seek only Authorized Services to Correct App Error 523

BlackBerry has its own service centers and services. It would be best to bring your unit to the authorized service centers whenever application problem such as jvm error 545 or jvm error 102 occurs. When it comes to checking the internal or software of your smart phone, especially when your unit is still covered with insurance, then you better engage the services of an accredited service center or technician. That is a smart way of protecting yourself from any disqualification from claiming for warranty. If it is not a simple app error 523, and you have allowed unauthorized opening or resetting of your phone system, then you at risk of forfeiting any warranty claim. You must have known that any insurance-covered unit that is opened or touched by an unauthorized person or the repair is unauthorized to fix app error 523.


http://www.apperror523.net/