Controller Shells

I had bought a controller shell for my controller and am now trying to install it and when I go to put it on it holds the start button down the whole time. Anyone have an idea on how to fix this? I really want this shell on.

It sounds like something is getting stuck/caught on something as you put the case back together. That would be my only logical reasoning

I fixed it by using a round file and filing it to make the hole bigger. Here’s the finished product!

DUDE where did u get the shell from ?