Difficulty

Moderate

Steps

42

Time Required

Suggest a time??

Sections

10

  • Battery Disconnect
  • 3 steps
  • Battery
  • 2 steps
  • Hard Drive
  • 2 steps
  • Heat Shield
  • 1 step
  • Display Assembly
  • 9 steps
  • Wifi Card
  • 3 steps
  • RAM
  • 2 steps
  • SSD Card
  • 6 steps
  • CPU Fan / Heat Sink Assembly
  • 3 steps
  • Motherboard
  • 11 steps

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1

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  • BackASUS VivoBook S400C

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What you need

Step 1

              Remove the Bottom Cover
  • Flip the device over and remove the ten 5.7 mm screws with a Phillips #0 screwdriver.

Flip the device over and remove the ten 5.7 mm screws with a Phillips #0 screwdriver.

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Step 2

  • Use a spudger or your fingers to go around and lift the edges and release the back panel.

Use a spudger or your fingers to go around and lift the edges and release the back panel.

Step 3

              Disconnect the Battery
  • Using a spudger, lift up the plug connecting the battery to the motherboard.

Using a spudger, lift up the plug connecting the battery to the motherboard.

Step 4

              Battery
  • With a Phillips #0 screwdriver, remove the four 5.7 mm screws holding the battery to the laptop.

With a Phillips #0 screwdriver, remove the four 5.7 mm screws holding the battery to the laptop.

Step 5

  • Carefully lift the battery up and out of the device.

Carefully lift the battery up and out of the device.

Step 6

              Hard Drive
  • Remove the three Phillips #0 screws holding the the hard drive in place:
  • Two 3.8 mm screws.
  • One 5.7 mm screw.

Remove the three Phillips #0 screws holding the the hard drive in place:

Two 3.8 mm screws.

One 5.7 mm screw.

Step 7

  • Pull left and lift out the hard drive.

Pull left and lift out the hard drive.

Step 8

              Heat Shield
  • Remove the black shield covering the display connector and the heat sink.
  • You may need to use double-sided adhesive tape to resecure the shield.

Remove the black shield covering the display connector and the heat sink.

You may need to use double-sided adhesive tape to resecure the shield.

Step 9

              Display Assembly
  • Remove the black tape securing the keyboard ribbon cable to the display connector.
  • Fold the ribbon cable the opposite way, resecuring it to the hard drive to keep it out of the way.

Remove the black tape securing the keyboard ribbon cable to the display connector.

Fold the ribbon cable the opposite way, resecuring it to the hard drive to keep it out of the way.

Step 10

  • Peel off the clear tape from the motherboard display connector.

Peel off the clear tape from the motherboard display connector.

Step 11

  • Position spudgers on the white tabs on either side of the connector and push evenly to unplug the display.

Position spudgers on the white tabs on either side of the connector and push evenly to unplug the display.

Step 12

  • Peel off the three pieces of black tape securing the display cable to the motherboard.
  • Deroute the cable from the channel it sits in.
  • Move the cable to the side, out of the way.

Peel off the three pieces of black tape securing the display cable to the motherboard.

Deroute the cable from the channel it sits in.

Move the cable to the side, out of the way.

Step 13

  • Use a spudger to release the cables from the wifi card.

Use a spudger to release the cables from the wifi card.

Step 14

  • Lift the tapes securing the wires to the motherboard.
  • Move the wires to the side out of the way.

Lift the tapes securing the wires to the motherboard.

Move the wires to the side out of the way.

Step 15

              Disconnect the Hinges
  • Remove the two screws securing the hinge on the left.
  • Pry the hinge up by hand to a 90 degree angle.

Remove the two screws securing the hinge on the left.

Pry the hinge up by hand to a 90 degree angle.

Step 16

  • Remove the two screws securing the hinge on the right.
  • Pry the hinge up by hand to a 90 degree angle.

Remove the two screws securing the hinge on the right.

Step 17

              Remove the Display
  • Lift the base of the laptop from the front.
  • Raise it to a 90 degree angle.
  • Slide it forward slightly to clear the hinges.
  • The display is now free.

Lift the base of the laptop from the front.

Raise it to a 90 degree angle.

Slide it forward slightly to clear the hinges.

The display is now free.

Step 18

              Wifi Card

Step 19

  • Remove the singular 3.8 mm screw with a Phillips #0 screwdriver.

Remove the singular 3.8 mm screw with a Phillips #0 screwdriver.

Step 20

  • Pull the wifi card up and out.

Pull the wifi card up and out.

Step 21

              RAM
  • Hook a thumbnail in each of the metal retainers on either side of the RAM module and spread them apart slightly.
  • The RAM module will pop up at an angle.

Hook a thumbnail in each of the metal retainers on either side of the RAM module and spread them apart slightly.

The RAM module will pop up at an angle.

Step 22

  • Slide the RAM out in a straight line to remove it.
  • When replacing the RAM, insert it at the same angle and be sure to slide it fully into the slot before snapping it down. The latches on the sides should fit exactly into the cutouts on the side of the memory module.

Slide the RAM out in a straight line to remove it.

When replacing the RAM, insert it at the same angle and be sure to slide it fully into the slot before snapping it down. The latches on the sides should fit exactly into the cutouts on the side of the memory module.

Step 23

              SSD Card
  • Disconnect the I/O Board ribbon cable from the motherboard.
  • Flip up the retaining latch with a spudger.

Disconnect the I/O Board ribbon cable from the motherboard.

Flip up the retaining latch with a spudger.

Step 24

  • Grasp the ribbon cable by the blue tab and pull it straight out from the connector.

Grasp the ribbon cable by the blue tab and pull it straight out from the connector.

Step 25

  • Disconnect the I/O Board ribbon cable from the I/O board.
  • Flip up the latch with a spudger.

Disconnect the I/O Board ribbon cable from the I/O board.

Flip up the latch with a spudger.

Step 26

  • Grasp the ribbon cable by the blue tab and pull it straight out from the connector.
  • Remove the ribbon cable to expose the SSD device.

Remove the ribbon cable to expose the SSD device.

Step 27

  • If present, remove any insulating sheet covering the SSD.
  • Remove the single retaining screw.

If present, remove any insulating sheet covering the SSD.

Remove the single retaining screw.

Step 28

              Unplug the SSD from the motherboard
  • Grasp the SSD by the sides and slide it out of the connector.

Grasp the SSD by the sides and slide it out of the connector.

Step 29

              CPU Fan / Heat Sink Assembly
  • Unplug the fan.
  • Grasp the plug with a fingernail on either side and pull it straight out from the connector.

Unplug the fan.

Grasp the plug with a fingernail on either side and pull it straight out from the connector.

Step 30

              Remove the Fan and Heatsink Screws
  • Remove the two 5 mm screws securing the fan.
  • Remove the four 3 mm screws securing the heat sink.
  • Removing the screw covered by the warning label will void your warranty.

Remove the two 5 mm screws securing the fan.

Remove the four 3 mm screws securing the heat sink.

Removing the screw covered by the warning label will void your warranty.

Step 31

              Remove the Fan and Heatsink
  • Lift the fan and heatsink straight up to remove it.
  • Before reassembly it is essential to clean off the old thermal paste from the processor and the heatsink and to apply new. How to apply thermal paste explains how.

Lift the fan and heatsink straight up to remove it.

Before reassembly it is essential to clean off the old thermal paste from the processor and the heatsink and to apply new. How to apply thermal paste explains how.

Step 32

              Motherboard
  • Unplug the black cable connecting the motherboard to the speakers.

Unplug the black cable connecting the motherboard to the speakers.

Step 33

              Disconnect the Trackpad
  • Flip up the trackpad ribbon cable retainer with a spudger.

Flip up the trackpad ribbon cable retainer with a spudger.

Step 34

  • Pull the cable straight out from the connector.
  • Peel the trackpad cable off the conductive tape strip below it.

Pull the cable straight out from the connector.

Peel the trackpad cable off the conductive tape strip below it.

Step 35

  • Remove the first of the two conductive tapes grounding the trackpad.

Remove the first of the two conductive tapes grounding the trackpad.

Step 36

  • Remove the second conductive tape grounding the trackpad.

Remove the second conductive tape grounding the trackpad.

Step 37

              Disconnect the LED Board Cable
  • Use a spudger to flip up the LED board cable retainer.

Use a spudger to flip up the LED board cable retainer.

Step 38

  • Pull the ribbon cable straight out from the connector.

Pull the ribbon cable straight out from the connector.

Step 39

              Disconnect the Keyboard
  • Place a spudger on the ears on either side of the keyboard ribbon cable connector and push evenly on both sides to release it.
  • The retainer will only move a very short distance then stop.
  • Lift it slightly to relieve the tension.

Place a spudger on the ears on either side of the keyboard ribbon cable connector and push evenly on both sides to release it.

The retainer will only move a very short distance then stop.

Lift it slightly to relieve the tension.

Step 40

  • Unplug the keyboard ribbon cable.

Unplug the keyboard ribbon cable.

Step 41

              Remove the Mounting Screws
  • Remove the two mounting screws.
  • There are triangular arrows printed on the board pointing to each of them.

Remove the two mounting screws.

There are triangular arrows printed on the board pointing to each of them.

Step 42

              Remove the Motherboard
  • Lift and slide the motherboard toward the hard drive to clear the connectors on the opposite side from the case.

Lift and slide the motherboard toward the hard drive to clear the connectors on the opposite side from the case.

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

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                    Jerry W

Member since: 03/21/2022

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