You should now have 5 screws out of the mixer.

Carefully pry apart the mixer, starting at the top. Preferably pull the right side away from the left, as this has the catches in it.

There are two catches holding the case together, at the front and at the bottom near the beaters. Be careful not to break these, you can try pulling the right side of the mixer slightly forward as you pry apart.

The beater release button may pop out here. Try not to lose it.