I was trying to implement MCU boot option with default keys with Portenta H7. I have loaded the default keys using MCUBoot enable security file. And then changed the compile option in the IDE to signature + encryption. Afder doing that when I am trying to update the new sketch (e.g MCUBoot confirm sketch) then I am getting error 74 during the upload.
Failed uploading: uploading error: exit status 74
Can someone help me, how to go about. Again, if I update any sketch without signature + encryption then I am able to upload that.