Lundin, first of all thank you very much for your reply.
My BDM pod is a P&E USB BDM Multilink ver C. I tested already a program of P&E called Unsecure12 and this program told me that the device is already Unsecured.
In the Codewarrior I click on the select derivative option (set_derivative1.jpg) and I saw a checkbox that said "Filter by PARTID". When i checked this option i got it a response like in picture set_derivative2.jpg and when desplegated the menu showed I saw that my mcu wasn´t in the list (set_derivative3.jpg).
I don´t know what this exactly mean. I tested with many DP512 mask set 0L00M and all have the same problem.
have you seen a problem like this sometime ?