thinkpad-ec VS T430-Bios

Hi all, some of you might be familiar with the T430 classic keyboard hack. I seem to be stuck. I followed the instructions here to physically modify the keyboard. I downgraded my BIOS to the 2.81 version. I installed Linux Mint on a spare SSD, booted into it, and followed the github instructions here to create the bootable USB. However, when I boot the USB to modify the firmware, I run into an error message before it starts. I'm not quite sure what it means or how to get it to proceed. Does anyone have any experience with this?

If your notebook is a thinkpad from the xx30 series you can do a custom keymap for the embedded controller with thinpad-ec - you'd need to flash back bios, update EC, flash back coreboot. I've done that to have a native dvorak keyboard with control on the right position.

In regards to unlocking third-party batteries on the Ivy Bridge ThinkPad laptops, this is handled by the embedded controller firmware, stored on a completely separate chip from the system firmware. On these systems, coreboot is not concerned with the embedded controller functionality at all. There is a separate project that handles this: thinkpad-ec

Link to EC Flash: https://github.com/hamishcoleman/thinkpad-ec

I bought an aliexpress battery and have gone through the process of the battery patch. I can now run with the battery, and get a decent 6ish hours off of it. Fantastic.

I've a question which chip is the 4MB and which one is the 8MB? and I've found this link it has rom image too like your link

Let me put this in context: For the past 4 weeks I've been trying to find an original BIOS for a T430 so that I can flash the EC and get all the keys to work properly. Last week I received a few BIOS (some of them I didn't test this is the repo where i've post them ; https://github.com/123ahaha/T430-Bios). I flashed one of them, it was an old enough version to be able to flash the EC (with this https://github.com/hamishcoleman/thinkpad-ec) without doing any downgrade manually. I have an "animation" that is supposed to appear when the EC is flashed. So I assumed that the manipulation went well. So I reflashed coreboot on my thinkpad (HEADS more exactly but it doesn't matter)