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Introduction

This is a guide to replace the Wi-Fi card on the Samsung Notebook 7 Spin NP740U3MK01US. However, it is extremely difficult to replace the Wi-Fi card itself so this guide shows how to replace the whole USB board that the Wi-Fi card is attached to. If you are unable to connect to a wireless network use this guide to replace your Wi-Fi card.

  1. Flip your laptop over so that the back  is face up.
    • Flip your laptop over so that the back is face up.

  2. Use a Phillips #00 screwdriver to remove the four 6.5mm screws and the six 4.5mm screws that secure the back plate. Use a Phillips #00 screwdriver to remove the four 6.5mm screws and the six 4.5mm screws that secure the back plate.
    • Use a Phillips #00 screwdriver to remove the four 6.5mm screws and the six 4.5mm screws that secure the back plate.

  3. Use a plastic opening tool to remove the back plate from the laptop. It is recommended that you start from a corner then run the tool along the  edge of the back plate.
    • Use a plastic opening tool to remove the back plate from the laptop.

    • It is recommended that you start from a corner then run the tool along the edge of the back plate.

  4. Use a Phillips #00 screwdriver to remove the three 4.5 mm screws holding the battery in place. Use a Phillips #00 screwdriver to remove the three 4.5 mm screws holding the battery in place.
    • Use a Phillips #00 screwdriver to remove the three 4.5 mm screws holding the battery in place.

  5. Use a spudger to pry the battery connecting cable from the laptop and remove the battery. Using the metal spudger may severely damage the internal components in your device. Using the metal spudger may severely damage the internal components in your device.
    • Use a spudger to pry the battery connecting cable from the laptop and remove the battery.

    • Using the metal spudger may severely damage the internal components in your device.

  6. Use the Phillips #00 screwdriver to remove the two 4.5mm screws holding the cover plate in place. Use the Phillips #00 screwdriver to remove the two 4.5mm screws holding the cover plate in place. Use the Phillips #00 screwdriver to remove the two 4.5mm screws holding the cover plate in place.
    • Use the Phillips #00 screwdriver to remove the two 4.5mm screws holding the cover plate in place.

  7. Remove the black ribbon cable by pulling up on the black cover and sliding out the cable. Remove the black ribbon cable by pulling up on the black cover and sliding out the cable.
    • Remove the black ribbon cable by pulling up on the black cover and sliding out the cable.

  8. Remove the three black and white cables by gently pulling on them. Remove the three black and white cables by gently pulling on them. Remove the three black and white cables by gently pulling on them.
    • Remove the three black and white cables by gently pulling on them.

  9. Use the Phillips #00 screwdriver to remove the two 4.5mm screws holding the USB board down and remove the board. Use the Phillips #00 screwdriver to remove the two 4.5mm screws holding the USB board down and remove the board.
    • Use the Phillips #00 screwdriver to remove the two 4.5mm screws holding the USB board down and remove the board.

Conclusion

To reassemble your device, follow these instructions in reverse order.

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