KEY POINT: OPEN FROM FRONT, REMOVE THE HIDDEN SCREW
SLIDE THE SOUND PANEL TO RIGHT, DETACH THE SIGNAL STRIP UNDERNEATH.
TAKE AWAY THE KEYBOARD, TAKE OFF THE SIGNAL STRIPS
DRAW A MAP OF SCREWS
MANY TEDIOUS STEPS OMITTED, E.G., REMOVE FROM BACK SIDE, BATTERY, HARD-DISK, CD DRIVER, AND REMOVE THE SCREWS AT THE EDGE WHICH CONNECT THE TOUCHPAD SHELL, REMOVE THE LAYER UNDER THE KEYBOARD, WHICH COVERS THE FAN AND MAINBOARD.
REACH THE LAYER OF FANS
TAKE OFF THE BIG FAN AND REMOVE THE DUST LAYER
CLEAN INSIDE OF THE FAN
THE MAP OF SCREWS FROM BACK SIDE
REASSEMBLE ALL PARTS ACCORDING TO YOUR MEMORY AND SCREW MAP.
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