Find your BlackBerry ID on your old device
If you created a BlackBerry ID on a previous BlackBerry device, it's important to sign in using your existing BlackBerry ID
on your new device, because many of your apps and settings are associated with it.
On the home screen of your previous device, click Options or Settings.
Depending on your device, do one of the following:
• Click Third Party Applications > BlackBerry ID.
• Click Device > BlackBerry ID.
• Click or tap BlackBerry ID.