Introduction
Prerequisites 1. Follow the procedure in Before working inside your computer.
Tools
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            Remove the two screws (M2.5x5) that secure the base cover to the palm-rest and keyboard assembly. 
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            New line. Loosen the two captive screws (M2.5x8.5+3.5) that secure the base cover to the palm-rest and keyboard assembly 
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            Loosen the four captive screws (M2.5x1.7+3.3) that secure the base cover to the palm-rest and keyboard assembly. 
 
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            Using your fingertips, pry open the base cover from the middle of the front edge of base cover, and then pry the left and right sides of the base cover. 
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            Lift the base cover off the palm-rest and keyboard assembly. 
 
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            Disconnect the battery cable from the system board. 
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            Turn your computer over and press the power button for 20 seconds to drain the flea power 
 
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            Disconnect the battery cable from the system board (applicable only if not disconnected earlier). 
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            Remove the four screws (M2x4) that secure the battery to the palm-rest and keyboard assembly. 
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            Remove the four screws (M2x3) that secure the battery to the palm-rest and keyboard assembly. 
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            Lift the battery off the palm-rest and keyboard assembly. 
 
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            Open the latch and disconnect the keyboard-backlight cable from the keyboard-controller board. 
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            Open the latch and disconnect the keyboard cable from the keyboard-controller board. 
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            Open the latch and disconnect the keyboard-controller board cable from the keyboard-controller board. 
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            Remove the screw (M2x2) that secures the keyboard-controller board to the palm-rest and keyboard assembly. 
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            Remove the keyboard-controller board off the palm-rest and keyboard assembly. 
 
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To reassemble your device, follow these instructions in reverse order.