Introduction
The only prerequisite for the WiFi card is the Base Cover.
What you need
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Remove the five identical 3/16" Phillips screws that secures the hard drive and memory cover using a Phillips #0 Screwdriver.
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Remove the 3/16" screw located at the bottom left corner of the WiFi card using a Phillips #0 Screwdriver.
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Almost done!
To reassemble your device, follow these instructions in reverse order.
Conclusion
To reassemble your device, follow these instructions in reverse order.