While CH341A is a hardware programmer, much of the software used to interface with it—for directly flashing a BIOS chip—is open-source and hosted on GitHub. These tools offer a hardware-based alternative to software-only tools like MMTool.
Click . Verify that the new GUID appears at the bottom of that specific firmware volume. Step 4: Updating Microcode or Option ROMs If you are updating existing components: Go to the Replace tab.