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Replacing the Motherboard on the Why! NK50SZ
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 ↓This guide shows you how to replace the motherboard of a why! NK50SZ, after disconnecting the cables and removing the screws that hold it in place.
What you need
Parts
Tools
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Unlock the right latch and hold the left latch unlocked with your finger.
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Hold the left latch.
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Lift the battery from the slot under the right latch.
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Unscrew the 2 screws, then take a paperclip.
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Straighten it so that you can slide it into the slot with the corresponding icon.
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Insert the paperclip into the orifice to release the keyboard preparatory to removing it in the next step.
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Lift the keyboard, without removing it.
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Locate the cable attaching it to the motherboard.
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Open the latch and remove the cable.
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Now you can remove the keyboard.
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You must unscrew the six screws (red circles).
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Disconnect remove the fan lead.
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The assembly can now be carefully lifted out.
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Disconnect the three ribbon cables (orange rectangles)
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Remove the five screws (red circles)
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Insert a pick between the edges of the upper and lower case and slide it as depicted.
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Continue with the pick to disengage the plastic 'clips' along both sides.
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Remove the Bottom cover.
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Position the device keyboard down and peel off the adhesive strip (orange square).
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Release the cables (orange square).
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Unscrew the three screws (red circles).
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You must also disconnect the antenna leads from the Wifi card (green circle) if it hasn't already been removed. It isn't necessary to remove the WiFi card to remove the motherboard.
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To reassemble your device, follow the instructions in reverse order.
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