Hello tabownerskt
Can you please provide more details such as which tablet you are using and what is the issue that you are facing. Also, can you please confirm if the entire keyboard of the tablet is not functioning or only some keys are working and others aren't, what were you doing when the last time the keyboard was functioning, which operating does your tablet have, etc.?
Please provide detailed information about the issue in order to help us provide you precise solution for your problem.
Cheers!!