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I could put the photo now n.n, of my MacBook Air, I dropped it accidentally :( , but I want to know if my Display is broken or a cable inside it, what you recommend me to do?
Kevin, that is a broken LCD. Part of the electronics that is connected to your LCD panel has failed. You could try and see if you find something obvious, but most likely you will have to replace the panel. Hope this helps, good luck.