@Brainlet : Thanks for your reply.
After having successfully used the v1.2 Flashrom tool with my X570 chipset ASRock mainboard I have attached the updated “Flashrom v1.2 Utilities” to the start post. The package contains now the currently latest Flashrom v1.2 tool and the currently latest Rufus tool v3.15.
@all:
Please give us your feedback about the usability of the “Flashrom v1.2 Utilities” and don’t forget to mention the manufacturer and model of your mainboard.