Dismantling HP Pavilion dv4-2040us laptop

crwdns2936071:01crwdne2936071:0 — Remove the battery

Place the laptop facing down with the battery upwards in your work area.

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Remove the 3, #00 Phillips screws located below the battery.

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Remove the 2, #00 Phillips screws that secure the Hard Drive and the Wi-Fi card cover.

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Unscrew the 3, #2 Phillips screws.

crwdns2936071:05crwdne2936071:0 — Remove the DVD unit.

Remove the WWAN card screw.

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Remove the 3 upper left corner screws.

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Remove the 3 upper right corner screws.

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Turn the laptop and open it.

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Take the keyboard partially out of its place, first from the top, then from the bottom of the keyboard.

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Remove the 2 screws under the keyboard, located in the lower left corner.

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Before tearing the plastic surrounding the keyboard, remove the ribbon cable holding it in place.

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Take out the Wi-Fi antenna cable and remove the label.

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Push both ends of the screen cable using a tool until it's disconnected.

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Unplug the speakers power cable.

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Remove the screen.

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Remove the 3 screws under the screen bezel.

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Remove the lateral card.

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Remove the screw that holds the motherboard in place.

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Put the clock battery out of the way.

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Using your hand or a pair of pliers, remove the lint.

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Using a #000 Phillips screwdriver, remove the 4 screws that close the fan housing.

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Loosen the 4 screws that hold the heat sink in place.

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Use 70% or higher isopropyl alcohol and cotton or absorbent paper to damp.

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Place a small amount of new thermal paste on the metallic part of the CPU.