AMI updates Aptio’s AMI Firmware Update (AFU), a Secure Update Utility

[…]AFU still supports older SMM methodologies for older systems, but such methodologies cannot be used when the platform is equipped with modern BIOSes.[…]

https://ami.com/en/tech-blog/ami-firmware-update-afu-tool-a-secure-update-utility-for-aptio-v-uefi-bios-firmware/