Problem with lasersman green pen laser

Hey guys, im new here so i dont know a lot about fixing lasers, so i came to you guys. i recently got this laser to start with, 150mW 532nm High Power Green Beam Laser Pointer Pen (infrared filter), and im having an issue with the button on it. it was working fine, but then after use it started to be harder to turn on, and the button just stopped working after a while. do you guys have any ideas on how i can fix it?

You can open it up and solder a wire across the button, then use the key switch on the bottom to turn it on/off.

That is of course, if the button is the problem.

it is the problem, but i cant find a way to get inside the button area of the laser. do you have an idea of a way to access it?

I now know for sure the button is the issue, so I guess this is my last plea for help. Anybody have an idea on solutions? would pictures help?