07-13-2013 03:40 AM - edited 07-13-2013 03:44 AM
Welcome to BlackBerry Support Forums
If you want to use a NEW BlackBerry ID on your Curve 9320 then first do a Backup of your device using Desktop Software then perform a Security Wipe within your BlackBerry , After a sucessful wipe you will be allowed to use a new BlackBerry on your device .
For help refer to those Knowledge Base Article :
KB12487 : How backup BlackBerry smartphone Data using BlackBerry desktop software for Windows
KB14058 : How to delete all data and applications from the BlackBerry smartphone using the Security Wipe option
You can restore your data after using your new BlackBerry ID . Try it and let us know if you feel any issues .
Or if you already know your previous BlackBerry ID and password then you can simply Update your BlackBerry ID Username or Email on BlackBerry ID website , that confirmation you will allowed to use your new Username or email :