It is now possible to unlock Nokia BB5 phones by using your USB cable - this is called Remote Unlocking.
Once unlocked your phone can use any simcard from any network worldwide.
Remote Unlocking only supports certain models. Please see list.
Nokia BB5 phones supported by Remote Unlocking:
5320, 5700, 6110, 6120c, 6121c, 6124c, 6210, 6220c, 6290, 6650, E51, E66, E71, N76, N78, N79, N81, N81 8G, N95.
REMOTE UNLOCKING DOES NOT SUPPORT N82, N84, N85, N95 8G, N96.
You must have an usb cable and an internet connection to use Remote Unlocking.
You can buy Remote Unlocking service from kane7647