Welcome to the official BlackBerry Support Community Forums.

This is your resource to discuss support topics with your peers, and learn from each other.

inside custom component

Java Development

New Contributor
Posts: 2
Registered: ‎12-05-2011
My Device: 9700
My Carrier: orange

upgrading third party application


I wrote a 9700 applicationthat stores the data in the PersistentStore.

I would like to support an upgrade of the application that will not lose the application

setting and the data stored in the PersistentStore (if needed upgrade it)

Any ideas?

Thanks in advance,



BlackBerry Development Advisor
Posts: 15,813
Registered: ‎07-09-2008
My Device: BlackBerry PRIV
My Carrier: Bell

Re: upgrading third party application

As long as your persistable classes do not change, users can upgrade your application without loss of its data.


If you are referring to the user upgrading their device OS, you'll need to implement Backup and Restore for your persistent classes.  Refer to the following link for more information.


Backing up data

Mark Sohm
BlackBerry Development Advisor

Please refrain from posting new questions in solved threads.
Problem solved? Click the Accept As Solution button.