Toshiba laptop keys not working

lisa206

Distinguished
Dec 6, 2011
1
0
18,510
Hello,
keyboard is not working. when keys are pressed they either do not work, wrong character is showing or more than one character is there
 

Starcase6

Commendable
Feb 18, 2016
1
0
1,510
I don't have an answer but needed to ask Antizig how to address those possible solutions. How would I test to see which one is affected (if any of the three are the culprit)?
Thank you for your assistance.