I have a problem with my laptop keyboard. From time to time it happens that my keyboard hangs briefly and keys do not work, so there would be a loose connection. For me, it's the Shift, S, and W. Keys, but they're always all there if one of them doesn't work. I have already tried to update the driver, but it did not help. So far I have not dared to remove the buttons individually and to clean them. But I think that would not help because the buttons mentioned do not always work at the same time. However, I do not know whether these buttons are somehow connected to each other, so that the contact breaks off with all buttons.
Trying to replace the keyboard sometimes works
