Hi , Viewers in this video you are going to learn how you can easily fix the mechanical keyboard without opening it . Some times due to use of keyboard buttons causes the points bile carbon to freeze , which is why some keys don,t work . But WD-40 is a non-acidic solution capable of purifying carbon well . you can also use any other solution which is non acidic which can clean tha carbon or dust . The main purpose of this method is to clean the dust or carbon.
And if this method doesn't work for you then don't worry , you don't have to buy a new keyboard. because mechanical keyboards have each and every switch separate working mechanism. you need to just replace the defective switch with new one. these switches are easily available in the market.
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