Updated BIOS Toshiba Satellite A200-1AG, but model was wrong, it was PSAE6E and should be PSAECE.
So all works ok, also external USB keyboard, but using integrated keyboard some keys fails i.e:
pressing e key I get "ei"
pressing i key I get "ei"
pressing 3 key I get "38"
pressing 8 key I get "38"
pressing d key I get "d,"
pressing , key I get "d,"
I used a software to show keypresses and i all cases 2 keypreses are shown.
When I reflash/ update the correct BIOS, problem persist.
This occurs in windows also in linux OS.
What could I do, I think it is a software/ firmware BIOS error ( ¿ maybe keyboard microcontroller's code?), but I am not sure.
I read some about SLIC and MOD bios, but it is more difficult to understand to me. I don't know how and if it could be useful.
Some help may be useful.