resetting  Sparc T3-1 to factory settings issue

Hello ,

I follow the instructions to reset the SPARC server to its factory settings:

- login with default user by pressing the physical presence button

- create user with role=aucro

- restart server and login with the created user

- apply the :  -> set /SP reset_to_defaults=factory

- restart the server

the issue is  that the server while rebooting is deleting the configuration and then  loading the old configuration .

How i can permanently delete any saved configuration and set all settings to it's default?

Thanks