You can try this as long as you can make a call?
If so the just dial *228 then send choose option 1 repeat then chose option 2 this will reset the password to your last for numbers of your phone number. I have done this several times, but I was able to make calls still.(It wasn't completely locked.)
default Security Code of nokia-12345 and 00000.
The default security code is 12345, if this has been changed and you have forgotten the code then you will need to visit a nokia care point/service centre.
They will be able to reset the code but you will lose all stored data. They will need to see proof of purchase before performing this procedure to ensure that you are it's rightful owner.
It is not possible to reset it yourself.
http://www.nokia.com and select your country.
n a self doing homemade solution m giving to u.....
just download the nokia software updater
from the following link
n update ur fone in on mode.....
n u will need to full charge ur battery.....n follow those instruction given by the updater...it is nearly 23MB.......
thanks for using fixya