Introduction
Use this guide to replace the lower case on a HP ProBook 640 G3.
What you need
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Remove the eight 6 mm-long Phillips screws securing the lower case.
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Insert an opening pick into the seam between the lower case and chassis.
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Slide the pick around the entire perimeter of the device until the lower case releases.
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Remove the lower case.
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Conclusion
To reassemble your device, follow these instructions in reverse order.