Hello Everyone!
I've just received received my 1397003 variant of Model M (F) https://geekhack.org/index.php?topic=6841.0bh for a reasonable price.
But it goes without any controller. Anyways i wanted to mod the keyboard to type-c connection with rp2040 or something similar.
Inside it has only 20pin and 8pin. Any tips how to start revers engineering of the board and how to make it works with modern controller are appreciated.