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If your wifi isn't working, it might just be a loose connection to your wireless card. Follow this guide to replace your wireless card.
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Slide the switch to the left until the release clicks.
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Remove the two 5mm Phillips screws on the hard drive cover using a Phillips #00 screwdriver.
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Pull up on the two plastic flaps on the hard drive enclosure to remove it.
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Gently lift the ribbon cable away from the hard drive enclosure to free the drive.
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Locate four 2mm Phillips screws on the side of the enclosure and remove them using a Phillips #00 screwdriver.
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Slide the hard drive out of the enclosure to complete the removal process.
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Locate the wireless card and the two wires attached to it.
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Using a plastic spudger tool, carefully lift up on each wire connecting the card to unsnap the connectors.
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Locate the 2.5mm Phillips screw on the corner of the WLAN card and remove it using a Phillips #000 screwdriver.
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Upon removing the screw, the WLAN card will pop up. Keeping a natural angle, slide the card out of the slot.
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The card is now free from your computer.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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