[mercuris]

And you downgraded the Cas? I think there is something wrong with your procedure.

1. You have an encrypted cas - You don't say if you downgraded it
2. If you used dump from a non downgraded cas to make key then you must decrypt dump by isn or key data, you don't say if you did this.

It means the cas data is not decrypted so the security key is wrong!! Wont work

I didn't downgrade the cas as the they direct dump the eprom using vvdi prog, seems "you must decrypt dump by isn or key data" this is my problem then, hmm I'll try again, thanks for the info