The video shows a person using a hammer and a key to remove the back cover of a smartphone. The person starts by using the hammer to loosen the cover, then uses the key to pry it off. The person's hands are visible throughout the video, and the smartphone is placed on a white surface. The hammer and key are both black, and the smartphone has a black cover. The person's actions are deliberate and careful, ensuring that the cover is removed without damaging the phone.