I forgot my security code F-Secure ANTI-THEFT.



I have a Nokia 808 over two years. The problem is that I want to change the sim card, and I can not because the F-Secure asks for a security code. I do not remember the security code, so how to recover this code?  You can send a text message to the smartphone of the content # UNLOCK # to unlock it, but how?  Smartphone should send the unlock instructions for a trusted number, but they do not come to  my old phone number. 

So how do I retrieve the security code so that I could call the new number?

Or is it a universal code to unlock the F-Secure?

Please help me. :)

Greetings to all.

wyspian1 from Polish.


  • BenBen Posts: 2,641 F-Secure Product Expert

    Hello @wyspian1 ,


    No there is no universal unlock code for our product.


    Unfortunately Mobile Security for Symbian has reached its end of life on December 31, 2014 (see this article).


    You can try to follow the instructions provided as solution on this thread.

  • HönöHönö Posts: 64

    You mean you will not help anyone who has Anti_theft anymore? So if I made the mistake of setting up Anti-Theft WITHOUT a secure number, I will simply lose all my data as soon as I change the SIM card to another one?

  • BenBen Posts: 2,641 F-Secure Product Expert

    Hello Hönö,


    Note that my response above concerned only Symbian OS. For supported platforms, please follow this article.

  • HönöHönö Posts: 64

    My phone is a Symbian phone. So I will lose my data?

  • BenBen Posts: 2,641 F-Secure Product Expert

    If you change the SIM card, you can use the security code to unlock the phone.

    You just need to be sure to remember it if you use Anti-theft on Symbian (unsupported platform).



  • HönöHönö Posts: 64

    OK, I forgot to repeat what the original poster said: I have Symbian and I have forgotten the security code and I never set a secure number. But do you really think I would be asking these questions if I still had my security code?


    Is there any way to get out of this deadlock?

  • BenBen Posts: 2,641 F-Secure Product Expert

    I am sorry to say but in this case a reset would unfortunately be the way to get your phone unlock.

  • HönöHönö Posts: 64

    Ahh, still I forgot one important detail: my phone is no tlocked. So I have installed Anti-Theft, set it up without a secure number, then forgotten the security code, but I am still using my phone, it hasn't gotten locked yet. Is there any chance to get rid of AntiTheft without losing all other data in this case?

  • BenBen Posts: 2,641 F-Secure Product Expert

    If your phone is not locked,  make sure to have your data backed-up at all time.


    Unfortunately to uninstall the product, the Anti-Theft security code is needed(see this article).

  • HönöHönö Posts: 64

    Well, I quess the question is this: if I reinstall Symbian Belle and then restore my data from backup, which part of the backup restore I have to skip so as not to bring Anti-Theft back?

  • BenBen Posts: 2,641 F-Secure Product Expert

    Unfortunately Anti-Theft is part of the firmware for Symbian Belle and cannot be dropped.

This discussion has been closed.