BMW X3 F25 - ano 2012 /read processor (5M48H) via vvdi Prog, I used the file to write key copy by autohex, but the same one asked for is not from the dme as it would be cas 4 crypto, I used tango to generate the key directly in the file and write to processor, placed in the car not we have communication with cas (dead) need to change the cas or even wake up the one that I have at hand, can help with some information on how to do this procedure?

did not you have backup?
what happens if you write it?

I thought F25 had BDC tho

Bmw x3 F25 have cas. Write original dflash read by vvdi in backup mode. If you have original tango, it can take out isn with valid key from dump