On this page of the FNAF Security Breach guide , you will find a walkthrough for Chica's Beak quest. We show the steps needed to obtain the Voice Box.
This quest is essentially a boss encounter. After damaging her, Chica will become more aggressive. She will have an easier time detecting you, but will make much more noise.
First, approach Chica and take her Voice Box. This will open the path further. Before you embark onto the next stop, save your progress, as the things may not go your way during the battle sequence.
The goal of this task is to activate 3 generators. Each of them opens the passage further. The last one allows you to leave the area and escape Chica. A detailed walkthrough for the encounter can be found on a dedicated page of the guide .