After the crown box forgets the password, it can be opened by resetting the box password. The tools needed are a sharp object (such as a wire) and a box that needs to reset the password. The specific steps are as follows:

1. Find the location of the crown box combination lock.

2. Insert a slender and sharp object into the hole on the right side of the password box.

3. Insert a sharp object (such as a wire) into the hole, fiddle with the digital password on the box and set it as a memorable three-digit password.

4. After setting the digital password, turn the button marked open on the right side of the digital password counterclockwise.

5. Turn the button counterclockwise, pull out sharp objects (such as wires), and complete the password reset of the crown box, then open the box.