I don't think I did this one for you but it does not matter. When you installed the license and Product Key, did you do so using elevated privileges (RUN AS ADMIN)?
I have already modified your bios....of course you can flash right away....Please do not modify it again...lol....that would be disastrous.
I did not send this to you....did you execute a script file (.BAT) file? You need the HP certificate and you cannot change the name. Was your bios modified with a HP SLIC 2.1?