If you use the shark mako kit at #4, a warning two you, the screw driver will not go in there. You will get a long one to go there in there. If you try At #4 you will suffer the consequences. Those black screws can strip easily and you might damage what you are trying to fix. This guide was used to clean my pro controller thanks!

At step eight, the easiest way to separate the two halves is to use your triangle pry tool, on the sides, underneath where the handle covers are, on both sides. I thought that I had missed a screw or something but that wasn't true. Just slowly pull them apart, I used this guide to clean my pro controller, thanks!