t430 BIOS/ EC update issue 7 row keyboard

Updated to the newest bios version Lenovo offers for the device. Had the bios and EC modding for 7 row keyboard and all batteries working before after using battery and charger. Now the specific buttons don't work again with the new bios. I made the usb stick again following instructions on github. But only the bios is being updated, not the EC which seems to be crucial for these mods to work. I don't know how to get it working. The program says to do the EC next, then it reboots, doing nothing to the EC. This happened to me with the older bios version on the bios before on that device. Worked last weekend just by using a battery. I ran a bit out of ideas, any help appreciated to get 7 row keyboard fully working:)

Is a bios downgrade needed?