If you have not registered for a BlackBerry ID yet, that is what you need to do first. You should be able to do it from the handset. It's been so long for me I don't remeber, but don't you see something, like register, or signup, or something?

The alternative is to register online using a full web browser on a computer. But I know you can do it from the handset.

If you did somehow register and for some reason don't realize that you did so, go to the BlackBerry ID and follow the steps for a forgotten password.
Posted via BlackBerryForums.com Mobile