Introduction
This guide will help you replace your fan. You may want to use this guie if your computer's fan stops running.
Tools
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            Place your thumbs on the lock tabs. 
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            Slide the tabs with your thumbs in an outward direction (in the direction of the arrows). 
 
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            Unscrew the 3.5mm screws using a Phillips J0 Screwdriver by rotating the screwdriver in the counter clockwise direction. 
 
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            Unscrew the three 3.5mm screws using a Phillips J0 Screwdriver by rotating the screwdriver in the counter clockwise direction. 
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            Unscrew the one 4.45mm screws using a Phillips J0 Screwdriver by rotating the screwdriver in the counter clockwise direction. 
 
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            Unscrew the fourteen 9.5mm screws using a Phillips J0 Screwdriver by rotating the screwdriver in the counter clockwise direction. 
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            Unscrew the two 3.5mm screws using a Phillips J0 Screwdriver by rotating the screwdriver in the counter clockwise direction. 
 
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            Insert the plastic opening tool between the seam of the back panel and the laptop. 
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            Slide the plastic opening tool along the seam to loosen the back panel from the laptop. 
 
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            Unscrew the four 8.9mm screws using a Phillips J0 Screwdriver by rotating the screwdriver in the counter clockwise direction. 
 
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            Unscrew the two 4.45mm screws using a Phillips J0 Screwdriver by rotating the screwdriver in the counter clockwise direction. 
 
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To reassemble your device, follow these instructions in reverse order.