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- How to Fix Keys That Aren't Responding We receive complaints from many users that a key on their keyboard isn't working. It's usually something simple that you can fix, saving you the expense of buying a new keyboard. Make sure that the key is still at its base. After that, verify whether the plunger is in good condition. Repairing Damaged Keys There are a variety of ways to extract the key stuck in locks. A key extractor is a popular tool that is available online or at most hardware stores. This device, which looks like a metal stick with teeth is used to crac