Introdução
Use this guide to replace the lower case on a Dell Latitude 3420.
Ferramentas
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Close the laptop lid and set the laptop down with the lower case facing you.
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Use a Phillips #00 screwdriver to remove the seven 7 mm-long screws securing the lower case.
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Insert an opening tool into the seam between the lower case and chassis.
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Pry around the entire perimeter until the lower case fully releases.
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Remove the lower case.
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Conclusão
To reassemble your device, follow these instructions in reverse order.
