Introduction
Tools
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            Gently pull on the top plastic plate of the device and carefully unplug the white cord from the circuit board. 
 
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            Gently pull up on the right plate on the mouse; separating it. 
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            Carefully repeat this step for the left side. 
 
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            Plug the new top casing's cable back into the socket on the right side of the circuit board near the middle. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.