09-02-2013 12:50 PM
Provided you still know the password for the bbid change it like this. http://www.blackberry.com/btsc/KB28060
If you don't know the password you will have to create a new one and lose your purchases. http://www.blackberry.com/btsc/KB24062
In both cases, backup and security wipe the playbook and go through the setup using the new bbid.