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How to Fix Faulty Key Repairs A damaged key fob could make your life miserable. With and guidelines it's easy to solve these problems. Before attempting any repairs, make sure you be sure to ground yourself to eliminate static electricity. It takes only a few seconds and is a good way to practice to work with electronics. Look for any debris caught under the key that is damaged. Breadcrumbs and other bits of food often become stuck beneath keys, preventing them from being pushed in properly