Dell XPS 15 9550 issues regarding unresponsive keyboard

So I've got issues regarding the keyboard.

It stops (keyboard) working suddenly a lot of times and I keep having to do the BIOS update from the dell's website in order to fix it. I have to do it at least 5 or 6 times a day unfortunately.

As I am currently writing this it stopped working so Im using the touch screen. Any reasons ?