Introduction
Tools
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            Flip your laptop over and place on a flat surface so you can access the screws on the base cover. 
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            Remove the six 7 mm screws from the back panel of the laptop using a Phillips #0 screwdriver. 
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            Remove the four 4 mm screws from the bottom edge of the laptop using a Phillips #0 screwdriver. 
 
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            Use an iFixit opening tool to pry apart the case by sliding it along each side of the laptop. 
 
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            Using the spudger, disconnect the two wireless LAN cables (black and gray) from the wireless LAN card. 
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            Remove the LAN cables from the three brackets on the fan. 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.