Introduction
Tools
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            Flip the computer over so the backside is facing you. 
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            Using the two prongs that are located in the back, slide the further left prong and the upper right prong to the left as indicated in the image. 
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            Slide the battery out. 
 
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            Look for tabs in between esc and f1, f4 and f5, f8 and f9, f12 and scroll. 
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            Pull these tabs towards you. 
 
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            Flip the laptop over and on the back of the center of the keyboard there is a screw with a rectangle beside it that looks like a keyboard. Remove this Phillips 5mm screw and another similar screw in the back top left of the keyboard. 
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            Then carefully lift the keyboard out of place with your fingernails or a plastic opening tool. 
 
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            There will be a metallic film attached to the keyboard from the motherboard. A black latch runs along the film keeping it in place. Lift the latch and detach the film; remove it to fully remove the keyboard. 
 
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            Carefully undo the white film the same way you took out the metallic film 
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            Once this film is removed the bar with the power button and media tools above the keyboard will pop out of place using a spudger. 
 
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            Underneath, a metal clamp will be revealed with two Torx Security T7 17mm screws. Unscrew these. 
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            Carefully lift the cable out of place that is to the right of it. 
 
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            Unscrew these two JIS #1 5mm screws on the fan. 
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            Carefully unplug the fans' wires. 
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            Remove the fan and put in new one. 
 
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To reassemble your device, follow these instructions in reverse order.
One comment
I don’t know why these instructions are suggested but this is how you actually remove the disc drive. https://www.youtube.com/watch?v=gTvAt3Nn...
Cretien -