BlackBerry Frequently Asked Questions
If you need help with your BlackBerry smartphone or PlayBook, these top FAQs are a great place to start. If you can’t find what you’re looking for here, please take a look at the Support Page on our website, our Help section on Facebook or send a tweet to our tech support team @BlackBerryHelp giving as much detail as you can about your problem
How do I fix Error 523, App Error 523 or JVM 523?
If your BlackBerry smartphone stops responding and one of these error messages appears, here's information on what it means and how to resolve it.