Using your needle tip tweezers gently pry the home button connector and detach it from the home button flex.

Using the flat end of your nylon spudger gently pry the home button away from the back side of the frame.

The home button should pass through the hole in the middle of the LCD assembly and fall to your work mat.

The home button will not work if it is replaced with an aftermarket part as it is still serialized to the logic board. If you damage this you will have to seek service through apple to restore fingerprint capability. (This will probably result in device replacement.)