Today I don't know why, the few key combinations that were not working in my keyboard (see here) are working again.

The weird thing is that I am quite sure that they were not working when I turned on the laptop, but now, they're working. Maybe it needed some heat, love, typing. Maybe it's pump.io #goodvibrations :)

So now I have Ctrl+Z, Ctrl+X, Ctrl+C, Ctrl+V and Ctrl+Alt+F3 again #oleole

In addition to this, I learned that the reparation has 3 month guarantee. Not bad!