nspire52

I have a blackberry 7100i with unlimited data access. I want to pair my x51v to it so that I can use my blackberry as a modem. This is where I am at. On the Blackberry, I have bluetooth enabled. The screen says "paired devices empty". On my axim, my screen -settings -unable to connect. it goes on to say that "your device did not connect with blackberry 7100. The network failed or the password is incorrect. I hate passwords and rarely use them. In the help files (both on the blackberry and the axim, it says that if I dont want to assign one just click/choose/tap next. I tried but still didnt make the connection. In flustration, on the backberry, I just tried to enter 1234 for a password. But because of the way the keyboard is on the bb I dont know if I entered etui or ryif or some other combination of those 4 keys. I'll stop here. Any help is appreciated. Thanks