Оригинальный сообщение: Philip Fisher ,
I have an MB Pro 2012 running Catalina and I get the same message. I think AHT worked under Mavericks then I updated to Mojave then Catalina. After I upgraded to Catalina is when I discovered AHT didn’t work. I may wipe the drive and go back to Mavericks unless this can be fixed under Catalina.