Some keys not working on a n145 samsung laptop

[Godzilla]

Hello guys, ive an old laptop that has some keyboard problems, basically some keys dont work, so i bought a replacement keyboard and raplaced the old one. Even on the new keyboard some keys dont work but now the broken keys are different from the previous... Ive checked the schematics and the keyboard seems to go straight to a MEC1308-N chip, is it possible that only some output of the chip are broken?