If the shutter button on your camera has stopped functioning, use this guide to remove the old one and install a new button.
Locate the 3 screws on the outer metal band and remove them with a #00 Phillips screwdriver.
Use the spudger to peel off the outer metal band, starting from the bottom of the camera.
The shutter button can now be removed. It is not connected to the camera and can be lifted off.