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How to Fix Faulty Key Repairs A broken key fob can cause you to lose your day. Luckily, repairing problems like this is easy to fix with the right tools and procedures. Always ground yourself before attempting any repairs to remove static electricity. It only takes a second and is a good practice when working with electronics in general. Find any debris that may be under the key that is defective. Breadcrumbs and other debris may get stuck beneath keys, preventing the keys from being properly pushed