Einleitung
"Prerequisite Only"
Learn to replace the palm rest of the HP ProBook 4520s. The palm rest includes the touchpad which is used to move the cursor on the screen.
Werkzeuge
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Flip the 4520s upside-down with the front toward you.
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Push the two latches below the battery inwards at the same time.
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Flip the 4520s over and rotate it so the back is facing you.
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Use a metal spudger to peel off two rubber caps located on either side of the battery port.
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Rotate the 4520s and then open it with the screen facing you.
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The switch cover is located above the keyboard. Push the switch cover away from you until it comes loose from the 4520s.
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Lift the switch cover away from the 4520s and set it aside.
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Use a Phillips #1 screwdriver to remove the two 7mm screws located on either side of the keyboard panel.
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Gently raise up the keyboard and flip it over to reveal a ribbon cable.
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Release the ribbon cable by carefully lifting the black tab upwards, one side at a time.
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Remove the cable and lift the keyboard panel up. Set it aside.
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Use a Phillips #1 screwdriver to remove the three 3mm screws along the top of the palm rest.
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Release the ribbon cable by opening the black hinge on the port using a spudger.
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Remove the cable and set the palm rest aside.
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To reassemble your device, follow these instructions in reverse order.