Hi!

I had a problem with an application on my N9, and when I uninstall it, it just killed my N9 by deleting one by one the desktop icons (and what's behind).

So I had to flash my phone, and I took the files from NZ. The thing is that I have now a message each time I turn on my phone : "Warning you have modified the device software, making the waranty ..."

I don't give a **** about that message. But it might explain my problem.

So I'm trying to put a security lock. The phone locks itself after 5 minutes of not using it, and then ask for a password. My problem is here, I cannot set any. When I go in Settings > Security > Device lock > Security code it always says "Wrong security code". I tried the one I had before the flashing, but it doesn't help.

The thing is that it cannot be wrong as there is no code.

Can you guys help me to solve that issue ?
Thanks!