not sure what your post actually means; we need more details.
If it means that you have lost the security code for your mobile phone, kindly open a support ticket here:
Lost security code cases have to be handled outside of the F-Secure Community.
i think ,my code before be 12345 .. but i can't now change new password.. i use nokia e7
For this type of case, please refer this sticky post:http://community.f-secure.com/t5/Security-for-PC/Forgot-lost-your-Anti-Theft/td-p/26202