Here is a photo of what I’ve got. On the left, my iPhone 15 cord, with same size plugs, and on the right my older iPad’s cord with two different size plugs. Will the old one work? Problem is, we have three older devices. Exactly what part of this doesn’t work? The cord or the charger, and why won’t it work. And what about people who didn’t read Jim’s post and just go to the ship with whatever they have? Sorry to be so dense.