Requirements

Requirements:

Hardware needed:

• A Lenovo Thinkpad T430 mainboard or at least the BIOS chips of/for it
• A device that is able to flash SPI chips, such as:
  • A Raspberry Pi type B (Rev is not relevant, as long as it has GPIO pins) with an SDcard, display and keyboard OR
  • an STM32 devboard such as the "bluepill" or a "maple mini" flashed with STM32-vserprog OR
  • a Ch341a spi programmer (WARNING! Be aware that some of the devices are configured to run with 5V and will send 5V to your SPI chip FRYING IT!!)
• A SOIC8 chip clamp (I personally recommend the variant from Pomona as they are kinda enduring and hold on to the chip quite well)
• 7 (I recommend 8) Female-Female Jumper wires

Documentation:

• About the T430:

  • Thinkwiki article
  • Lenovo T430 service/maintenance manual

• About the chip(s) itself: MX25L3205D/MX25L6405D or compatible (the pins are identical)

• About the Raspberry Pi pins:

  • Small GPIO bar (26pins) (Only Rev 1)
  • Big GPIO Bar (40 pins) (Rev 2 and 3)

• About Coreboot:

  • How to build coreboot
  • Chosing the right payload for you

Software

• For getting and compiling flashrom and coreboot you need the following dependencies: (sudo apt install) build-essential pciutils-dev zlib1g-dev libfti-dev libusb-dev subversion git wiringpi libncurses5-dev
• flashrom (I recommend the latest version)
• The latest version of coreboot