Dismantling HP Pavilion dv4-2040us laptop

Stap 1 — Remove the battery

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

Stap 2

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

Stap 3

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

Stap 4

Unscrew the 3, #2 Phillips screws.

Stap 5 — Remove the DVD unit.

Remove the WWAN card screw.

Stap 6

Remove the 3 upper left corner screws.

Stap 7

Remove the 3 upper right corner screws.

Stap 8

Turn the laptop and open it.

Stap 9

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

Stap 10

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

Stap 11

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

Stap 12

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

Stap 13

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

Stap 14

Unplug the speakers power cable.

Stap 15

Remove the screen.

Stap 16

Remove the 3 screws under the screen bezel.

Stap 17

Remove the lateral card.

Stap 18

Remove the screw that holds the motherboard in place.

Stap 19

Put the clock battery out of the way.

Stap 20

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

Stap 21

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

Stap 22

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

Stap 23

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

Stap 24

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