Difficulty

Moderate

Steps

38

Time Required

Suggest a time??

Sections

6

  • Battery Disconnect
  • 3 steps
  • Heat Shield
  • 1 step
  • Display Assembly
  • 9 steps
  • LCD / Touch Screen Assembly
  • 20 steps
  • LCD
  • 4 steps
  • Touch Screen
  • 1 step

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1

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Introduction

The digitizer is not bonded to the LCD display, and so can be replaced without having to also replace the LCD if the LCD is not damaged. Although the digitizer is available without the front bezel, this guide does not address separating the touch screen from the bezel but only shows how to replace the assembly as a single unit.

Warning: If the glass display is completely shattered, please remain safe by following the directions here on how to tape over any glass and prevent being hurt.

If there is a possibility you will need to replace the LCD adhesive and want to have all parts on hand before you begin, read through the ASUS VivoBook S400C LCD Adhesive Replacement guide and consider ordering the 3 mm Double Sided Adhesive Tape.

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

              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 5

              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 6

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

Peel off the clear tape from the motherboard display connector.

Step 7

  • 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 8

  • 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 9

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

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

Step 10

  • 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 11

              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 12

  • 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 13

              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 14

              Remove the Display Retaining Screws
  • There are two black square plastic tabs covering the retaining screws. The tabs are fixed in place with light adhesive.
  • Using a thin blade, pry off the tabs covering the screws.

There are two black square plastic tabs covering the retaining screws. The tabs are fixed in place with light adhesive.

Using a thin blade, pry off the tabs covering the screws.

Step 15

  • With a Phillips #0 screwdriver, remove the two 3.8 mm screws holding the bezel in place.

With a Phillips #0 screwdriver, remove the two 3.8 mm screws holding the bezel in place.

Step 16

              Remove the Hinge Cover
  • Grasp the hinge cover and slide it to the right. It will only move about 3mm (1/8 inch).

Grasp the hinge cover and slide it to the right. It will only move about 3mm (1/8 inch).

Step 17

  • Tilt the hinge cover toward you and pull up to remove it.
  • It may catch on the parts it’s covering as you remove it. If that happens, just wiggle it around until it comes free.
  • No force should be needed to remove it. You do not have to pry on it to take it out.

Tilt the hinge cover toward you and pull up to remove it.

It may catch on the parts it’s covering as you remove it. If that happens, just wiggle it around until it comes free.

No force should be needed to remove it. You do not have to pry on it to take it out.

Step 18

              Release the Display Panel
  • Slide the screen down to release the catches holding it in place.
  • It will only move about 3mm (1/8 inch) and will stop when it has moved sufficiently.

Slide the screen down to release the catches holding it in place.

It will only move about 3mm (1/8 inch) and will stop when it has moved sufficiently.

Step 19

  • Lift up on the now-exposed bottom edge of the screen. Go around the edges, lifting it away from the housing. If it is still caught anywhere, remember to slide it down to free it.
  • Again, no force is needed. You do not have to pry on it to take it out. Doing so will damage the housing and/or the bezel.
  • Slide the screen out from under the hinges and remove it.

Lift up on the now-exposed bottom edge of the screen. Go around the edges, lifting it away from the housing. If it is still caught anywhere, remember to slide it down to free it.

Again, no force is needed. You do not have to pry on it to take it out. Doing so will damage the housing and/or the bezel.

Slide the screen out from under the hinges and remove it.

Step 20

              Disconnect the LCD Cable
  • Flip the touch screen assembly over and peel the clear tape covering the LCD connector off the LCD panel.

Flip the touch screen assembly over and peel the clear tape covering the LCD connector off the LCD panel.

Step 21

  • Using a spudger, slide the connector out in the direction of the bottom of the screen.

Using a spudger, slide the connector out in the direction of the bottom of the screen.

Step 22

              Dismount the Touchscreen Controller Board
  • The next few steps are easier if you rotate the display so the top of the screen is facing you.
  • Peel off the tape providing a ground point to the LCD frame.
  • Use the flat end of a spudger to flip up the latch on the right connector.

The next few steps are easier if you rotate the display so the top of the screen is facing you.

Peel off the tape providing a ground point to the LCD frame.

Use the flat end of a spudger to flip up the latch on the right connector.

Step 23

  • Use the flat end of a spudger to flip up the latch on the left connector.

Use the flat end of a spudger to flip up the latch on the left connector.

Step 24

  • Use fine tip tweezers to slide the right ribbon cable out of the connector.

Use fine tip tweezers to slide the right ribbon cable out of the connector.

Step 25

  • Use fine tip tweezers to slide the left ribbon cable out of the connector.

Use fine tip tweezers to slide the left ribbon cable out of the connector.

Step 26

  • The touchscreen board is secured to the bezel with two latches on the far side and a plastic hook on the near side.
  • Use a spudger to open the right latch while gently prying up with an opening tool or a fingernail.
  • Use a spudger to open the left latch while gently prying up with an opening tool or a fingernail.

The touchscreen board is secured to the bezel with two latches on the far side and a plastic hook on the near side.

Use a spudger to open the right latch while gently prying up with an opening tool or a fingernail.

Use a spudger to open the left latch while gently prying up with an opening tool or a fingernail.

Step 27

  • Rotate the board toward you while sliding it forward slightly to free it from the bottom hook.
  • Lift the board away from the bezel and move it aside.

Rotate the board toward you while sliding it forward slightly to free it from the bottom hook.

Lift the board away from the bezel and move it aside.

Step 28

              Dismount the Microphone Board
  • The microphone daughterboard is held in place by being pressed down onto a plastic pin.
  • Pry it up off the retaining pin with a plastic spudger.

The microphone daughterboard is held in place by being pressed down onto a plastic pin.

Pry it up off the retaining pin with a plastic spudger.

Step 29

              Dismount the Camera Board
  • The camera daughterboard is held in place with two latches along the top of the board and two hooks on the bottom.
  • It is seated on two plastic guide pins as well.
  • Be sure the board is fully seated on the guide pins when reassembling.

The camera daughterboard is held in place with two latches along the top of the board and two hooks on the bottom.

It is seated on two plastic guide pins as well.

Be sure the board is fully seated on the guide pins when reassembling.

Step 30

  • Slide a thin pry tool between the top of the camera board and the lip of the bezel.
  • Gently pry up on the board to free it from the latches and the guide pins it sits on.
  • Lift it up and away from the bezel and set it to the side.

Slide a thin pry tool between the top of the camera board and the lip of the bezel.

Gently pry up on the board to free it from the latches and the guide pins it sits on.

Lift it up and away from the bezel and set it to the side.

Step 31

              Remove the Wiring Harness
  • Carefully remove the five pieces of conductive tape securing the cables to the LCD frame.

Carefully remove the five pieces of conductive tape securing the cables to the LCD frame.

Step 32

  • Deroute the wiring to the daughterboards from the front bezel.

Deroute the wiring to the daughterboards from the front bezel.

Step 33

  • Deroute the LCD cable from the display.
  • The LCD / digitizer assembly is now free.

Deroute the LCD cable from the display.

The LCD / digitizer assembly is now free.

Step 34

              Separate the LCD from the Display
  • Heat the front edges of the touch screen with an iOpener, a heat gun or a hair dryer to loosen the adhesive securing the LCD to the digitizer.

Heat the front edges of the touch screen with an iOpener, a heat gun or a hair dryer to loosen the adhesive securing the LCD to the digitizer.

Step 35

  • Using a flat metal opening tool, carefully pry up the LCD, inserting opening picks as you go to prevent the display from re-adhering to the digitizer.
  • If you encounter significant resistance, reheat the section you are working on.
  • Start with the top edge of the display.

Using a flat metal opening tool, carefully pry up the LCD, inserting opening picks as you go to prevent the display from re-adhering to the digitizer.

If you encounter significant resistance, reheat the section you are working on.

Start with the top edge of the display.

Step 36

  • Proceed down the sides of the display and place picks at the bottom corners.
  • Do not attempt to slide an opener under the circuit board along the bottom of the display; you may damage the delicate electrical connectors.

Proceed down the sides of the display and place picks at the bottom corners.

Do not attempt to slide an opener under the circuit board along the bottom of the display; you may damage the delicate electrical connectors.

Step 37

  • Carefully lift the top edge of the LCD away from the frame.
  • The remaining adhesive on the bottom of the glass will peel off as you continue to lift the LCD.
  • The LCD is now free from the display.

Carefully lift the top edge of the LCD away from the frame.

The remaining adhesive on the bottom of the glass will peel off as you continue to lift the LCD.

The LCD is now free from the display.

Step 38

              Touch Screen
  • Set the LCD panel aside, being careful not to get fingerprints or dirt on the surface. The digitizer is now free.

Set the LCD panel aside, being careful not to get fingerprints or dirt on the surface. The digitizer is now free.

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

See the ASUS VivoBook S400C LCD Adhesive Replacement guide for instructions on how to replace the adhesive tape on the display frame if needed.

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                    Jerry W

Member since: 03/21/2022

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