electrical - How do you remove a wire from a push-in fitting when

How do you remove a wire from a push-in fitting when there is no release opening? Note: “What could cause two of my receptacles to stop working?” is my post. Note: My home is a 1980 manufactured

electrical - How do you remove a wire from a push-in fitting when

electrical - How do you remove a wire from a push-in fitting when

electrical - How do you remove a wire from a push-in fitting when