Introduction
If your keyboard module is malfunctioning, you'll need to replace it. You’ll need a PH0 screwdriver and a rigid pry tool. The process itself is easy, just pay special attention when gently opening the ZIF connector.
Tools
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            Flip the laptop over, so that the "top" of the laptop is against your working surface. 
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            Orient the laptop so that the silver label is in the bottom-left corner, with the battery facing you. 
 
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            On the right side of the battery, move the tab marked 1 to the right, unlocking the battery. 
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            On the left side of the battery, hold the tab marked 2 to the left while pulling the battery towards you. 
 
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            Starting at the right, pry up part of the plastic bar by using a spudger between the F12 and Insert key. 
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            Pull up on the rest of the plastic bar to remove it. 
 
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            Once screws are removed, lift the keyboard closest to the screen and gently flip it over. 
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            Using the spudger, lift up the white ZIF connector to unlatch the ribbon cable, and gently remove the cable. 
 
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To reassemble your device, follow these instructions in reverse order.