asdf jkl; keys are not working in my desktop / laptop
I recently gave solution for a similar problem. In the previous case the keys: qweruiop were not working.
The solution for asdfjkl; keys not working is just the same.
The problem once again seems to be with dirt settled in your keyboard and mostly has nothing to do with a faulty keyboard.
Please check this post on how to clean your keyboard and solve the problem.