HI JesusCordoba,
If your problem is because of unsecure, you have to do the following: once the Hi-Wave is open, click on "P&E Multilink/Cyclone Pro" and then click on the "Unsecure" option. This will execute the command file designed to unsecure the microcontroller. All the flash of the device will be erased and the security byte will be set to the Unsecure status (1:0 in the security bits).
If this does not work, I suggest you checking P&E tools. Click on the support link and then Downloads and Documentation. Select “Utility” as the Download Type and HC(S)12 as the Product Family. On the available downloads( http://www.pemicro.com/support/download_processor.cfm ) look for the Unsecure12 Utility, download it and install it. This software will allow you to unsecure the S12 derivatives we have.
Hope this helps,
Jun Zhang