Introduction
You will need to remove many parts of the computer. The key is to be careful when removing some parts of the computer.
Tools
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            Slide latch next to battery icon until battery pops up. 
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            Pull the battery away from the computer until completely detached. 
 
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            Position the computer so the front is towards you. 
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            Remove two 5mm Phillips #1 screws 
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            Slide the hard drive cover towards the empty battery spot and remove it. 
 
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            Loosen two 5mm Phillips #1 screws securing plastic cover, until cover is detachable. 
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            Slide cover toward empty battery area and remove it. 
 
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            Disconnect the hard drive cable that is plugged in. 
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            Lift the tab on the hard drive to pull it out of the computer. 
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            Hard Drive is removed. 
 
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            Remove one Phillips M2.5X5.0 Screw that is securing the optical drive. 
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            With the nylon spudger, push the optical drive until you can grab it. 
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            Pull the optical drive all the way out, until removed. 
 
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            Remove 2 Phillips M2.5X6.5 screws from the back of the computer. 
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            Turn the computer over, and open the computer as far as possible without breaking it. 
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            Release the top of the keyboard by lifting up and gently pull the top up until the whole keyboard is up. 
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            Lift plastic cover to release the ZIF connector that is holding the keyboard in place. Then remove the keyboard. 
 
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            Turn the computer upside down with the front towards you, and, remove the two rubber feet near the battery. 
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            Remove 13 Phillips M2.0X7.0 screws. 
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            Remove 6 Phillips M2.0X2.0 broad head screws. 
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            Turn computer over and open the computer as far as possible without breaking it. 
 
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            Release 2 ZIF connectors where the touch pad cable and fingerprint reader are connected. 
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            Remove 4 Phillips M2.0X4.0 screws near the top of the keyboard area. 
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            Lift top cover from the base and release the ZIF connector that the power button is connected to. The cover should now be removed. 
 
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To reassemble your device, follow these instructions in reverse order.