At the end I managed to update all BIOS of my machines by using the manifacturer original zip file.
Once extracted there are various files, fun part they changed the name of the main executable that had to be run via EFI with a less obviousy one and also added a FLASH.NSH file where .NSH are the EFI equivalents of .BAT in Windows and .SH in Linux.
So here's the procedure: unzip the ZIP content and put it in a flash drive, at the startup go in BIOS settings and select "Boot EFI shell", when the boot is complete go inside the flash drive content with cd fd0 or similar command where fd0 is your flash drive. At this point I first used the utility provided to do a backup copy of the current BIOS and then ran the FLASH.NSH file, then reboot and remove the external flash drive.
Answer from user3450548 on Stack ExchangeAMI
ami.com › home › resources › ami firmware utility (afu), a secure update utility for aptio v uefi bios firmware
AMI Firmware Utility (AFU), a Secure Update Utility for Aptio V UEFI BIOS Firmware - AMI
October 18, 2018 - AMI Firmware Utility (AFU) is a versatile firmware update utility. It initiates firmware update requests that are processed by system firmware, therefore, robustness of the firmware update process, to a large degree, is defined by the properties ...
SOGGI
soggi.org › motherboards › bios-update-flash-utilities.htm
Motherboard BIOS Update/Flash Utilities - AMI | Award | Phoenix
Download the latest Motherboard BIOS Update/Flash Utilities for your Mainboard with AMI, Award, Phoenix or Phoenix-Award BIOS
How to update my AMI BIOS?
Download the latest BIOS from Gigabyte's web site . More on reddit.com
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November 12, 2025Does AMI BIOS Version 7B89v1I Support Ryzen 5600 for B450 M Mortar Motherboard?
Did you go on this upgrade? Planning to get ryzen 7 5700x for my mortar max b450m More on reddit.com
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September 25, 2022BIOS compatibility
Planning on building a computer but need some advice? This is the place to ask! /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. Anyone is welcome to seek the input of our helpful community as they piece together their desktop · Create your account and connect with ... More on reddit.com
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December 2, 2022What’s going on with MSI’s bios updates?
7D25V192 was/is a Beta Bios, v19 is final. They didn't really remove it, their support website is a mess or incompetent web-designers. Removed products from the support page, sometimes missing links, sometimes old updates vanish and then show up again. Today I downloaded a BIOS which should be final, but inside was still a Beta bios, More on reddit.com
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November 25, 2022Videos
04:04
How to Update American Megatrends Bios (Easily) - YouTube
13:43
How To Update Your BIOS! (And Should You?!) - YouTube
02:52
How To Update American Megatrends Bios [Step by Step Guide] - YouTube
00:57
How to Update Your Motherboard’s BIOS - YouTube
03:52
How to Update American Megatrends BIOS - YouTube
Intel
intel.com › content › www › us › en › download › 19550 › afu-ami-firmware-update-utility-for-m10jnp2sb.html
AFU (AMI Firmware Update) Utility for M10JNP2SB
AFU (AMI firmware update) is a package of utilities used to update the system BIOS under various operating systems.
AMI
ami.com › home › products › aptio v
Aptio V: The Future of BIOS Firmware - AMI
November 20, 2025 - Aptio V BIOS/UEFI firmware is intelligent BIOS for intelligent platforms. ... Simplify silicon boot firmware development with tools like our VeB (Visual eBIOS) development environment
Reddit
reddit.com › r/techsupport › how to update my ami bios?
r/techsupport on Reddit: How to update my AMI BIOS?
November 12, 2025 -
Okay. I give up. Event viewer occasionally says Secure Boot CA/keys need to be updated. For other reasons it seemed like the BIOS needed to be updated but it was a hassle so I put it off. But I have no idea which exact utility and variant I need to use to update my BIOS. Sure, we are told to download the correct update file from your computer or motherboard manufacturer's website and etc but it isn't always clear to the ignorant such as myself which is the correct update file and/or utility.
BIOS Version/Date: American Megatrends International, LLC. F3 Y1, 1/19/2022
SMBIOS Version: 3.3
BIOS Mode: UEFI
BaseBoard Manufacturer: Gigabyte Technology Co., Ltd.
BaseBoard Product: B550 UD AC
BaseBoard Version: Default string
This device signature information from the event viewer...
DeviceAttributes: BaseBoardManufacturer:Gigabyte Technology Co., Ltd.;FirmwareManufacturer:American Megatrends International, LLC.;FirmwareVersion:F3 Y1;OEMModelNumber:B550 UD AC;OEMModelBaseBoard:B550 UD AC;OEMModelSystemFamily:B550 MB;OEMManufacturerName:Gigabyte Technology Co., Ltd.;OEMModelSKU:Default string;OSArchitecture:amd64;
Help?
EaseUS
easeus.com › computer instruction › how to update american megatrends bios on windows 11/10/8/7
How to Update American Megatrends BIOS on Windows 11/10/8/7
July 10, 2025 - The AMI Firmware Update Utility allows you to update an entire Flash or a section. It's a scriptable command-line utility that supports different operating systems, including Windows.
MSI
msi-bios.com › msi-bios-flash-utility-id-29.html
Flash Utility for MSI: AMI Firmware Update Utility v4.31
AMI Firmware Update Utility Ver.4.31 Copyright (C)2009 American Megatrends Inc. All Rights Reserved. Usage: AFUDOS <ROM File Name> [Option 1] [Option 2]... or AFUDOS <Input or Output File Name> <Command> or AFUDOS <Command> Commands: /O - Save current BIOS into file /C - Refer to Options: /C /U - Display ROM file's ROMID /S - Refer to Options: /S /Ln - Refer to Options: /Ln /M - Refer to Options: /M /MAI - Disaply System ROM and ROM file's MA information /HOLE: - Update specific ROM Hole according to given name.
Bios Mods
bios-mods.com › bios-recovery › ami-bios-recovery
Bios Mods -The Best BIOS Update and Modification Source: AMI BIOS Recovery
Rename the downloaded file to AMIBOOT.ROM. (NOTE: Please see paragraph 3 to make sure you pick the right name) Copy the file to a floppy disk (or USB flashdrive). Insert the floppy disk into the floppy drive. Turn on the system. The system should automatically access the floppy drive (indicator LED will light up). If no floppy access occurs, press Home to force update...
Wim's BIOS
wimsbios.com › amiflasher.jsp
AMI Flasher utility - AFUDOS, AFUWIN, AFULNX, AFUEFI - Download all available AMI flasher versions - DOS/Windows/Linux • Wim's BIOS
AMI Flasher is a utility program that helps you to update your BIOS - the code that runs the first moment you boot your PC.
American Megatrends
ecomputerz.com › home › computer knowledge › american megatrends bios update
American Megatrends BIOS Update | A Safe, Step-by-Step Guide
Use a UPS (or laptop on battery), flash from UEFI tools only, use a FAT32 USB pen, double-check the exact model and BIOS version, read the vendor notes, close applications, and never interrupt once the process starts. To support your American Megatrends BIOS Update, or your OEMs version of the AMI BIOS to be precise, have a flick through the video carousel below.
DFI
dfi.com › knowledge › video › 5
How to update AMI BIOS in UEFI mode on DFI products? | Knowledge Base｜Support｜DFI
How to update AMI BIOS in UEFI mode on DFI products? | Updating the DFI device's firmware is necessary if you experience some malfunctions of your device or if you upgrade your device with a newer CPU. In this video, you will learn how to update AMI BIOS on DFI products.
Solvusoft
solvusoft.com › en › update › drivers › motherboard › american-megatrends › ami-bios-flash-utility › sub-models
American Megatrends AMI BIOS Flash Utility Drivers Download - Update American Megatrends Software (Motherboard)
Update your American Megatrends AMI BIOS Flash Utility's driver by downloading the latest version from our drivers database below. You can install the new driver using Windows Device Manager.
Altoscomputing
altoscomputing.com › filepic › oth › Altos_BrainSphere™_P10_F6_System_BIOS_-_EFI_Update_User_Manual.pdf pdf
[EFI Shell BIOS Update] 1. Go to AMI web site to download ...
1. Go to AMI web site to download “Aptio V AMI Firmware Update (AFU) BIOS flash · tool”. https://www.ami.com/bios-uefi-utilities/. And put the AfuEfix64.efi to the · EFI folder. 2. Prepare a UEFI shell bootable USB drive. 3. Download Altos BIOS Package and copy files to the UEFI Shell ...
MiniTool Partition Wizard
partitionwizard.com › home › partition manager › 2 ways to update american megatrends bios
2 Expert Guides to American Megatrends BIOS Update
September 29, 2025 - To perform American Megatrends BIOS update using APU, please refer to the following steps: Download the BIOS file and unzip it. Download the AMI Firmware Utility Tool and unzip it.
Driver Files
driverfiles.net › american-megatrends-ami-bios-flash-utility-drivers-download.html
AMI BIOS Update and How to Install It
You can take advantage of the official AMI Firmware Update Utility (AFU Utility), which is a scriptable command-line utility for DOS, Microsoft Windows, Linux, FreeBSD, and the UEFI shell. Here is how to complete the American Megatrends BIOS update using AFU.
Solvusoft
solvusoft.com › en › update › drivers › bios › american-megatrends-ami › models
American Megatrends (AMI) Bios Drivers Download - Update American Megatrends (AMI) Software
Download the latest American Megatrends (AMI) Bios device drivers (Official and Certified). American Megatrends (AMI) Bios drivers updated daily. Download Now.
Wim's BIOS
wimsbios.com › biosupdates › ami.jsp
AMI BIOS Updates downloads for your motherboard • Wim's BIOS
Download your AMI motherboard BIOS updates for free here after identifying your AMI motherboard model with our extensive Award, AMI and Phoenix BIOS IDs
AMI
ami.com › home › tools & utilities
AMI Firmware Tools & Utilities
March 8, 2023 - AMI provides a comprehensive lineup of debug and diagnostic tools, pre-boot utilities and development systems to help improve the development experience and speed time to market.