It sounds like you're looking for a blog post about the (often referred to as version 3 by some users due to community patches). Since this is a specialized technical utility,
As Microsoft pushes toward Pluton security processors and firmware-measured boot, direct SPI access from userland becomes increasingly locked down. The current version may fail on: Universal Bios Backup Toolkit 3
This guide is for educational purposes. Modifying or flashing a BIOS carries a risk of rendering your computer unbootable ("bricking" it). Always ensure you have a stable power source (and a fully charged battery for laptops) before attempting any BIOS operations. Universal BIOS Backup ToolKit 2
| Method | Pros | Cons | |--------|------|------| | | Works on almost any motherboard (2002–2020); no need to boot into DOS; creates exact binary dumps. | Requires disabling driver signing; does not work on pure UEFI Class 3 systems (very recent CPUs); no technical support. | | AFUWIN (AMI Firmware Update) | Official AMI tool; supports modern UEFI capsules. | Only for AMI BIOS; cannot read the entire chip if locked by BIOS write protection. | | Flashrom (Linux) | Open-source; extremely reliable; supports external programmers. | Requires Linux knowledge; command-line only. | | In-Board Flash Utility (M-Flash, etc.) | Safe, manufacturer-supported. | Cannot back up a currently running BIOS (it flashes from a file only); often blocks reading. | Vendor-agnostic : Works on AMI, Award, Phoenix, Insyde,
.exe, no installation, runs even from a USB stick.