Thanks for the feedback, glad to hear it worked. Since there were two changes combined (reinitializing ME and emptying NVRAM) it’s unclear where the fault was. No visible corruption both areas…
Cleaning / fhreshly initializing Intel ME:
About the NVRAM- there are some posts here and a lot of posts, but this depends on bios manufacturer and version, there’s no ‘general rule’. Take a look into the files with UEFIToolNE and compare them with HxD, it’s actually not much I did change!