Difficulty

Moderate

Steps

38

Time Required

Suggest a time??

Sections

9

  • Battery Disconnect
  • 3 steps
  • Battery
  • 2 steps
  • Hard Drive
  • 2 steps
  • Heat Shield
  • 1 step
  • Display Assembly
  • 9 steps
  • SSD Card
  • 6 steps
  • Alternative CPU Fan
  • 1 step
  • Motherboard
  • 11 steps
  • Trackpad
  • 3 steps

Flags

1

Member-Contributed Guide

An awesome member of our community made this guide. It is not managed by iFixit staff.

  • BackASUS VivoBook S400C

  • Full Screen

  • Options

  • History

  • Save to Favorites

  • Download PDF

  • Edit

  • Translate

  • Get Shareable Link

  • Embed This Guide

  • Notify Me of Changes

  • Stop Notifications

Introduction

The trackpad is used to navigate and click on items in the Chromebook via the cursor, similar to the mouse on a desktop computer. A malfunctioning trackpad will not respond to your touch or is slow to respond.

We recommend reviewing the device’s troubleshooting page for other solutions, such as cleaning the touchpad, prior to replacing the touchpad, as Asus chose to make replacement on this model particularly difficult by requiring removal of the motherboard to take out the trackpad.

Power off and unplug your computer before beginning the replacement.

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.

1024

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

              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 19

  • 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 20

  • 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 21

  • 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 22

  • 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 23

              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 24

              Fan / Heatsink Assembly               
  • The fan and heat sink do not need to be removed for this procedure.
  • Remove the screw securing the fan to the palm rest. All other fan and heatsink screws can remain in place.

The fan and heat sink do not need to be removed for this procedure.

Remove the screw securing the fan to the palm rest. All other fan and heatsink screws can remain in place.

Step 25

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

Unplug the black cable connecting the motherboard to the speakers.

Step 26

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

Flip up the trackpad ribbon cable retainer with a spudger.

Step 27

  • 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 28

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

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

Step 29

  • Remove the second conductive tape grounding the trackpad.

Remove the second conductive tape grounding the trackpad.

Step 30

              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 31

  • Pull the ribbon cable straight out from the connector.

Pull the ribbon cable straight out from the connector.

Step 32

              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 33

  • Unplug the keyboard ribbon cable.

Unplug the keyboard ribbon cable.

Step 34

              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 35

              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.

Step 36

              Trackpad               
  • Flip the retaining latch on the trackpad ribbon cable connector up with a spudger.

Flip the retaining latch on the trackpad ribbon cable connector up with a spudger.

Step 37

  • Grasp the blue tab with fine tip tweezers and pull the cable straight out from the connector.
  • Gently peel the trackpad ribbon cable off the trackpad.

Grasp the blue tab with fine tip tweezers and pull the cable straight out from the connector.

Gently peel the trackpad ribbon cable off the trackpad.

Step 38

              Remove the Trackpad               
  • Lift the side of the trackpad farthest from the side of the case and slide it away from the edge to remove it.

Lift the side of the trackpad farthest from the side of the case and slide it away from the edge to remove it.

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

Cancel: I did not complete this guide.

Author

                                      with 1 other contributor 

                    Jerry W                     

Member since: 03/21/2022

23,571 Reputation

                                      50 Guides authored                  



                       Badges:
                       39







                                                        +36 more badges