App error 523 - RIM BlackBerry Curve 8520 Smartphone

Error 523 reset means a "System process died" You'll need I would reload the entire handheld OS again.

1. Install the software from the CD (that you received with the device), or download it from the service provider (AT&T).

2. Delete or rename the vendor.xml file, here: C:\Program Files\Common Files\Research In Motion\AppLoader (you're windows file options needs to be set to 'show system files', to see said file.

3. Open Desktop Manager (DM).

4. Connect the Red Pearl (since am sure that's what you have!).

5. Doing this will force the pc to see the BlackBerry as new hardware, and thus force it to reload the Operating System (OS).

6. During the process, select YES to do a backup.

7. The whole process should take about 30-45 minutes.

Hope this will help. If you need any more assistance, don't hesitate to come back to us. Else, if the problem is solved, please DO ACCEPT this solution. Best Wishes. Thanks for using FixYa.