Insert the pick between the black faceplate and white casing of the Nest Hello.

Pry the faceplate away from the device with the opening pick.

If you have not opened the Nest Hello before, there will be a protective foam mesh that is glued to the plastic covering and the inside of the mesh, use a pick to cut through the mesh as much as possible.

Completely remove the faceplate from the device, do not be afraid to pull hard.