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why! N240BU Motherboard Replacement
Felice Suglia and one other contributor
Last updated on Sep 2, 2026
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Community-Contributed Guide
An awesome member of our community made this guide. It was not created by iFixit staff.
Introduction
Go to step 1 ↓Use this guide to disconnect the internal components to access and replace the motherboard in a why! N240BU laptop.
What you need
Parts
Tools
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Start by unlocking the right locking latch.
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Then, by simultaneously unlocking the left latch, lift the battery out of its socket.
Ask FixBot
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Unscrew the circled screws in green and red
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Put the computer in the position of the second image while pushing a paper clip into the hole of the screw circled in green until you hear a click
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Lift the keyboard
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Begin by spotting the dummy memory card.
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Then, remove it and put it on your workplan.
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Locate the 15 screws that hold the bottom cover of the device in place.
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Unscrew them and place them on your work surface.
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Then, un-clip the bottom cover, starting with the side shown in the third picture.
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Unscrew the screw circled in red.
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Pull out the M.2 SSD in the direction of the red arrows.
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Remove the screw circled in red.
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Lift up the hard drive.
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Remove the hard drive in the direction of the red arrows.
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Remove the screw circled in red.
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Disconnect the two connectors marked in green.
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Remove the WLAN card.
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Press down on the two brackets boxed in red.
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Remove the RAM stick in the direction of the red arrows.
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Press with a screwdriver in the red circled area to spread the base of the battery
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Remove the battery by holding the screwdriver down
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Remove the two screws circled in red.
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Disconnect the connector boxed in green in the direction of the green arrow.
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Remove the cooling fan by lifting it up.
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Lift the retaining flap off of the connector boxed in red.
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Disconnect the connector boxed in red.
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Lift the flap that holds the connector (framed in green).
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Disconnect the connector (framed in green).
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Disconnect the connector marked in green by pulling it in the direction of the green arrows.
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Disconnect the connector marked in red by pulling it in the direction of the red arrows.
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Lift the black retaining flap that holds the connector marked in green.
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Disconnect the connector marked in green.
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Disconnect the connector marked in red by pulling it in the direction of the red arrows.
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Unscrew the five screws circled in green.
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Lift the motherboard by taking it by the radiator, as in the second picture.
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Lift the retaining flap that holds the connector marked in red.
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Disconnect the connector marked in red.
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Lift the retaining flap that holds the connector framed in green.
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Disconnect the connector framed in green.
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Remove the motherboard from the housing.
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To reassemble your device, follow these instructions in reverse order.
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