How to remove Csec key wildcard protected attribute?

[BigJulie]

i know how to load a csec key in S32K,but how can i change csec key attribute of wildcard ?

Best regard,

BigJule.

[lukaszadrapa]

Hi,

you need to update the key as described in this application note:

https://www.nxp.com/webapp/Download?colCode=AN5401&location=null

https://www.nxp.com/webapp/Download?colCode=AN5401SW&location=null

... change attribute wildcard back to 0, increment counter value and change key, if needed. Changing of wildcard back to 0 is not forbidden.

Regards,

Lukas