Introduction
This guide is useful if the keys on the device’s keyboard are malfunctioning or broken. This guide will show you how to replace broken keys, and also offer a couple troubleshooting tips if the keys are simply malfunctioning, or if the keys are “sticky.” The only tool you need for this guide is a spudger, but you could also use a toothpick or a dampened q-tip if you are trying to fix malfunctioning or “sticky” keys.
Tools
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            Wedge the spudger under the corner of the key and pry up while moving the spudger along the length of one edge of the key. 
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            Repeat this process for three sides of the key you are removing. 
 
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            Lift the key manually by the the edge opposite the one side of the key you did not pry off with the spudger. 
 
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            To replace the key, lay the new key over its housing with the proper orientation and push it down until you hear a click. 
 
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To reassemble your device, follow these instructions in reverse order.