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Introduction

If your Asus F555LA-AB31 will not connect to the network or if you experience intermittent connections, it may be time to replace your network card. Your network card connects your computer to a local area network (LAN) or the internet. If the network card has a faulty hardware component, the operating system might not show it as a connected device. It may also not reliably connect to networks or recognize networks in specific situations; such as when the laptop is hot or during extended use.

Before using this guide, verify the issue is not software related before replacing the network card. Asus provides a support guide to troubleshooting wireless issues in this link.

Electronics are sensitive to ESD. Here is a link for using an anti-static mat and wristband. The laptop must be unplugged before servicing to prevent electrical shock and hardware damage.

What you need

1. Step 1 CD Drive
  Turn off and unplug the device before starting repairing.
  
  Use the Phillips #0 screwdriver head to remove the ten 18mm Phillips #0 screws on the laptop's bottom.
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2. Step 2
  Flip the laptop over and flip the screen up.
  
  Pry upward on the edges of the faceplate in order to separate the keyboard and trackpad from the rest of the device.
  
  Be cautious of the cables connecting the keyboard and trackpad to the motherboard.
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3. Step 3
  Disconnect the keyboard flex cable from its motherboard ZIF socket.
  
  To unlock a ZIF connector, use the tip of a spudger or your fingernail to flip up the small, hinged locking flap. Carefully slide the unlocked cable out of the socket.
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4. Step 4
  Use the Phillips #0 screwdriver to unscrew the one Phillips #0 screw that connects the CD drive to the motherboard.
  
  Slowly slide out the CD drive, keeping it level, to remove it.
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1. Step 5 Hard Drive
  Remove ten 18mm Phillips #0 screws from the backside of the device.
  
  Removal of the RAM access panel is not necessary.
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2. Step 6
  Carefully fold the device open.
  
  Begin to pry upward on the edges of the faceplate in order to separate the keyboard and trackpad from the rest of the device.
  
  Be cautious of the cables connecting the keyboard and trackpad to the motherboard.
  
  To remove the ZIF connector, gently lift upward on the blue tab to disconnect it from the motherboard.
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3. Step 7
  Fold the keyboard section of the laptop up towards the screen to fully expose the inside of the device.
  
  Unscrew the four 4mm Phillips #0 screws holding down the hard drive.
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4. Step 8
  Disconnect the ZIF connector and lift the hard drive out of the space.
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1. Step 9 Battery
  Remove the four 4 mm Phillips #0 screws securing the battery.
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2. Step 10
  Lift up battery and remove it from the device.
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1. Step 11 Network Card
  Disconnect the two wires connected to the network card.
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2. Step 12
  Remove the seven Phillips #0 screws holding the motherboard down.
  
  Lift the motherboard upwards, folding it towards the laptop chassis.
  
  Unscrew the Phillips #0 screw holding down the network card, and slide it out.
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