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Introduction

If your Samsung NP300V5A-A08US Laptop is not connecting to your Wi-Fi or experiencing intermittent internet connections you may have a faulty Wi-Fi card. Use this guide to replace the Wi-Fi card. Before beginning, make sure to completely power down your laptop and remove any external devices and chargers.

  1. Make the laptop is powered down and completely off before continuing.
    • Make the laptop is powered down and completely off before continuing.

    • Unplug all power cords and USB devices that are connected to the computer.

    • Using a Phillips #00 screwdriver, remove the 4.5mm screw on the panel located at the bottom right of the computer.

    • Make sure to place the parts you have removed in an organized manner so that you know what goes where when you are reassembling your computer.

  2. Pry apart the plastic clips near the screw hole using a flat head screwdriver. Use your finger and the flat head screwdriver to pry up the plastic cover. It is normal to hear noises similar to that of plastic snapping when prying up the plastic cover.
    • Pry apart the plastic clips near the screw hole using a flat head screwdriver.

    • Use your finger and the flat head screwdriver to pry up the plastic cover.

    • It is normal to hear noises similar to that of plastic snapping when prying up the plastic cover.

  3. Pry off the rubber pads on the remaining three corners of the computer using the tip of the flat head screwdriver. Adhesive glue is used to hold the rubber pads on. It may take more effort to take these off.
    • Pry off the rubber pads on the remaining three corners of the computer using the tip of the flat head screwdriver.

    • Adhesive glue is used to hold the rubber pads on. It may take more effort to take these off.

  4. Using a Phillips #00 screwdriver, remove the three 6.5mm screws. Using a Phillips #00 screwdriver, remove the three 6.5mm screws.
    • Using a Phillips #00 screwdriver, remove the three 6.5mm screws.

  5. Remove the battery by sliding the little tabs in the directions of the arrows printed on the computer. Push the battery in a forward motion to slide it out. Make sure to keep the tabs held in the direction of the arrows. Push the battery in a forward motion to slide it out. Make sure to keep the tabs held in the direction of the arrows.
    • Remove the battery by sliding the little tabs in the directions of the arrows printed on the computer.

    • Push the battery in a forward motion to slide it out. Make sure to keep the tabs held in the direction of the arrows.

  6. Put your hands on the back panel and use pressure to slide the panel down a few millimeters (as shown in the photo). This frees up the pack panel and you can lift it right off after sliding it down. This frees up the pack panel and you can lift it right off after sliding it down.
    • Put your hands on the back panel and use pressure to slide the panel down a few millimeters (as shown in the photo).

    • This frees up the pack panel and you can lift it right off after sliding it down.

  7. Shown in the red square is the hard drive. It must be removed in order to access the rest of the computer. Using a Philips #00 screwdriver, remove the four screws holding the hard drive in place. Using a Philips #00 screwdriver, remove the four screws holding the hard drive in place.
    • Shown in the red square is the hard drive. It must be removed in order to access the rest of the computer.

    • Using a Philips #00 screwdriver, remove the four screws holding the hard drive in place.

  8. While holding onto the black plastic tab, pull up and to the right to remove the hard drive. Be careful not to damage the cable attached to the hard drive. Be careful not to damage the cable attached to the hard drive.
    • While holding onto the black plastic tab, pull up and to the right to remove the hard drive.

    • Be careful not to damage the cable attached to the hard drive.

  9. Take note of how the wire harness is routed around the motherboard and the plastic casing. Gently pull on the wire harness to get it out of the crevasse. Carefully wiggle the white plastic connector on the computer back and forth until you are able to disconnect the wire harness.
    • Take note of how the wire harness is routed around the motherboard and the plastic casing.

    • Gently pull on the wire harness to get it out of the crevasse.

    • Carefully wiggle the white plastic connector on the computer back and forth until you are able to disconnect the wire harness.

    • Be careful to not pull on the wires themselves, as they may become disconnected from the white plastic connector.

  10. Using a Philips #00 screwdriver, remove the 6.5mm screw located next to the "ODD" print as indicated in the photo.
    • Using a Philips #00 screwdriver, remove the 6.5mm screw located next to the "ODD" print as indicated in the photo.

  11. Stick your fingernails between where the optical disk drive slides out and the plastic frame of the computer. Using your hand (you might need to use both), pull outwards to slowly remove the optical disk drive from the computer. Using your hand (you might need to use both), pull outwards to slowly remove the optical disk drive from the computer.
    • Stick your fingernails between where the optical disk drive slides out and the plastic frame of the computer.

    • Using your hand (you might need to use both), pull outwards to slowly remove the optical disk drive from the computer.

  12. Remove the thirteen 6.5mm screws. Each screw location is designated by an arrow icon as shown in the second picture. Use your tweezers to remove loosened screws.
    • Remove the thirteen 6.5mm screws.

    • Each screw location is designated by an arrow icon as shown in the second picture.

    • Use your tweezers to remove loosened screws.

  13. The next several steps will show you how to remove the outer shell of the computer. Locate the discrete line between the two pieces of plastic on the side of the keyboard. Starting near the headphone jack, use a flat head screwdriver to pry apart the two pieces of plastic.
    • The next several steps will show you how to remove the outer shell of the computer.

    • Locate the discrete line between the two pieces of plastic on the side of the keyboard.

    • Starting near the headphone jack, use a flat head screwdriver to pry apart the two pieces of plastic.

    • A popping or snapping sound in the next couple steps is normal.

  14. Slowly start making your way around the edge of the keyboard, prying the two pieces apart. Slowly start making your way around the edge of the keyboard, prying the two pieces apart. Slowly start making your way around the edge of the keyboard, prying the two pieces apart.
    • Slowly start making your way around the edge of the keyboard, prying the two pieces apart.

  15. Continue prying apart the two pieces of plastic around the back corners of the computer. Continue prying apart the two pieces of plastic around the back corners of the computer. Continue prying apart the two pieces of plastic around the back corners of the computer.
    • Continue prying apart the two pieces of plastic around the back corners of the computer.

  16. You also have to get the skinny area where the battery port is. This is easiest to get to by closing the computer shut.
    • You also have to get the skinny area where the battery port is.

    • This is easiest to get to by closing the computer shut.

    • When you start to get most of the two plastic pieces disconnected, you can just use your hands to pop-it apart.

  17. Open the computer back up and work your way around to the other side of the computer where the Optical Disk Drive was. Open the computer back up and work your way around to the other side of the computer where the Optical Disk Drive was. Open the computer back up and work your way around to the other side of the computer where the Optical Disk Drive was.
    • Open the computer back up and work your way around to the other side of the computer where the Optical Disk Drive was.

  18. Continue prying apart the two pieces of plastic at the front of the computer.
    • Continue prying apart the two pieces of plastic at the front of the computer.

  19. Gently pry around the edges with your fingers or a plastic separator to separate the middle layer from the base. Gently pry around the edges with your fingers or a plastic separator to separate the middle layer from the base. Gently pry around the edges with your fingers or a plastic separator to separate the middle layer from the base.
    • Gently pry around the edges with your fingers or a plastic separator to separate the middle layer from the base.

  20. Locate the Wi-Fi card. Double check that the WiFi card you bought is the same as the one in your computer by comparing the model numbers on the old and new WiFi cards.
    • Locate the Wi-Fi card.

    • Double check that the WiFi card you bought is the same as the one in your computer by comparing the model numbers on the old and new WiFi cards.

  21. Remove the snap-on cables from the Wi-Fi card using the tips of your fingernails and the assistance of your tweezers. Take note which snap-on cable goes where on the Wi-Fi card. Take note which snap-on cable goes where on the Wi-Fi card.
    • Remove the snap-on cables from the Wi-Fi card using the tips of your fingernails and the assistance of your tweezers.

    • Take note which snap-on cable goes where on the Wi-Fi card.

  22. Using a Phillips #00 screwdriver, remove the single 4.5mm screw that secures the Wi-Fi card. The Wi-Fi card will spring up when the the screw is removed. The Wi-Fi card will spring up when the the screw is removed.
    • Using a Phillips #00 screwdriver, remove the single 4.5mm screw that secures the Wi-Fi card.

    • The Wi-Fi card will spring up when the the screw is removed.

  23. Free the Wi-Fi card from its mount by gently pulling the Wi-Fi card upward and outward. Free the Wi-Fi card from its mount by gently pulling the Wi-Fi card upward and outward. Free the Wi-Fi card from its mount by gently pulling the Wi-Fi card upward and outward.
    • Free the Wi-Fi card from its mount by gently pulling the Wi-Fi card upward and outward.

  24. Insert your new Wi-Fi card into the mount.
    • Insert your new Wi-Fi card into the mount.

    • Secure the new Wi-Fi card by replacing the 4.5mm screw using a Phillips #00 screwdriver.

    • Reconnect the two snap-on cables to the Wi-Fi card.

    • Make sure to reconnect the cables exactly as they were originally positioned.

Conclusion

To reassemble your device, follow these instructions in reverse order. Getting the plastic shell to snap back over the back of the motherboard may take some time to get it on correctly. Start at one side of the laptop and work your way to the other.

10 other people completed this guide.

Ryan Miller

Member since: 09/29/2015

391 Reputation

1 Guide authored

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Cal Poly, Team 15-4, Green Fall 2015 Member of Cal Poly, Team 15-4, Green Fall 2015

CPSU-GREEN-F15S15G4

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4 Guides authored

One Comment

This guide is quite good, and it will also be helpful to someone replacing other parts on a Samsung NP300. The WiFi card is buried deep, and many other components are removed along the way. So if you only wanted to swap hard drives or optical drives, this may be the best guide available. Thanks for all the clear photos and descriptions, Ryan Miller!

tai viinikka - Reply

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