Tools

Some tools to have in your BIOS mod folder:
HxD software https://mh-nexus.de/en/hxd/
Python 3.8 or above for some older tools maybe you will need Python 2.7 using two different version of Python is a nightmare, so I always use 2.7 in a virtual machine. https://www.python.org/downloads/
UEFI Tool all versions Will allow you to play with the most major regions from Intel BIOS. https://github.com/LongSoft/UEFITool
UEFI Tool modified version with detection of InsydeFlasher images https://github.com/ISpillMyDrink/UEFITool credit goes to <@711564465245782026>
Me Analyzer https://github.com/platomav/MEAnalyzer
Flash Imagine Tool https://winraid.level1techs.com/t/intel-converged-security-management-engine-drivers-firmware-and-tools-2-15/30719
Firmware repositories https://winraid.level1techs.com/t/intel-cs-me-cs-txe-cs-sps-gsc-pmc-pchc-phy-orom-firmware-repositories/30869
Guide for cleaning ME / TXE (https://winraid.level1techs.com/t/guide-clean-dumped-intel-engine-cs-me-cs-txe-regions-with-data-initialization/31277)
Each BIOS brands have different ways to unpack the BIOS update container. In some you will find the full imagine for flashing, in some you need to cut some info from start and the end. Be smart, use your back up, it’s easy to see the starting address and the end of it. On some BIOS update containers, are only the BIOS region. Witch it can be replaced with UEFITool in your back up.

WinRAR, 7-Zip – for general extraction
InnoExtractor – https://innoextractor.en.uptodown.com/windows most of Lenovo BIOS update container will be extracted from .exe
BIOS utilities – https://github.com/platomav/BIOSUtilities It works grate for new Dell’s
For old Dells are some tricks to run some comand in CMD writeromfile or some python script for extracting the hdr file.
AMI BIOS: You can use AMICUP v1.05, AMICUP v1.07 for extraction this tools will work on UAP imagine some HP use this imagine.
-regarding HP’s, it is enough just to execute the update container and will do the rest.
Phoenix Bios – It is some extractor Tool and the PhoenixTool witch it helps on different jobs for your imaginations
FD44Editor_0.9.2_win_Asus will edit the DMI on Asus desktops
Edit the DMI on HP’s try use NbDmiFit are many versions over internet. https://www.alisaler.com/hp-dmi-latest-all-version-download/

Fiding your COA key in your BIOS:
Search with HxD in hex-values for 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 1D 00 00 00
This pattern will take you to the COA key (the exception is made from some ideapads witch they have the COA key in 2 encrypted block’s and need to be decrypted by a XOR key )

I’m sure over internet are many ingenious software and tools witch will help you to extract, combine regions or whatever. Most of the good stuff is on Github

I don’t take any credit for links and software’s from this post. Are made from people more smarter than me 😄

I wish you all good luck and not be lazy. Use your brain and imagination, sky is the limit !!!