The keys do not work I teach you how to disassemble them for cleaning

If you do not work some keys of the notebook in this short video I show you how it is armed a keyboard and the correct way to remove them without breaking them, in order to be able to clean the tracks below, it has fragile mechanisms but while proceeding carefully there will not be Problems, if you did not forget to thank you, it does not cost anything and it does not go wrong, I like it and a subscription like this will reach more people