Difficulty

Difficult

Steps

39

Time Required

                          1 - 2 hours

Sections

16

  • Back Panel
  • 2 steps
  • Disconnect Battery Prerequisite
  • 1 step
  • Battery
  • 2 steps
  • Disconnect WiFi Prerequisite
  • 1 step
  • Deroute WiFi Wires Prerequisite
  • 2 steps
  • Disconnect Display Cable Prerequisite
  • 1 step
  • Right Display Hinge Disconnect Prerequisite
  • 2 steps
  • Left Display Hinge Disconnect Prerequisite
  • 2 steps
  • Display Assembly
  • 1 step
  • Touchpad
  • 5 steps
  • Disconnect Speakers Prerequisite
  • 1 step
  • Speakers
  • 3 steps
  • Motherboard
  • 4 steps
  • I/O Board
  • 6 steps
  • LED Board
  • 3 steps
  • Keyboard / Palm Rest
  • 3 steps

Flags

2

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  • BackAcer Chromebook 15 cb3-532-c47c

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Introduction

There are new keyboard-only replacement parts for sale, but using them requires melting off or otherwise removing the head of approximately 58 plastic retaining pins, then figuring out how to re-secure them. That kind of replacement is beyond the scope of this guide, so we’ll only be dealing with a replacement that comes with a keyboard + palm rest as a single unit as pictured above.

What you need

Step 1

              Back Panel
  • Power off the laptop before beginning the replacement.
  • Using the Phillips #1 screwdriver, remove eighteen 7 mm screws from the back panel of the device.

Power off the laptop before beginning the replacement.

Using the Phillips #1 screwdriver, remove eighteen 7 mm screws from the back panel of the device.

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Step 2

  • Use a plastic opening tool around the edges of the laptop and remove the back panel from the device.

Use a plastic opening tool around the edges of the laptop and remove the back panel from the device.

Step 3

              Remove the battery cable
  • Push on the sides of the connector with a plastic spudger to separate the cable from the motherboard.

Push on the sides of the connector with a plastic spudger to separate the cable from the motherboard.

Step 4

              Battery
  • Using the Phillips #1 screwdriver, remove the two black 5.5 mm screws securing the battery.

Using the Phillips #1 screwdriver, remove the two black 5.5 mm screws securing the battery.

Step 5

  • Remove the battery from the laptop.

Remove the battery from the laptop.

Step 6

              Unplug the WiFi Antenna Connectors
  • Firmly pull the end of the black wire attached to the Wi-Fi card upwards and remove it from the device.
  • Repeat with the white wire.

Firmly pull the end of the black wire attached to the Wi-Fi card upwards and remove it from the device.

Repeat with the white wire.

Step 7

              Deroute the Black WiFi Wire
  • Deroute the black wifi wire from its slot in the palm rest.

Deroute the black wifi wire from its slot in the palm rest.

Step 8

              Deroute the White WiFi Wire
  • Deroute the white wifi wire from the slot in the palm rest.

Deroute the white wifi wire from the slot in the palm rest.

Step 9

              Disconnect the Display Cable
  • Pull the end of the display cable attached to the motherboard straight up to remove.
  • Rotate the cable out away from the motherboard.

Pull the end of the display cable attached to the motherboard straight up to remove.

Rotate the cable out away from the motherboard.

Step 10

              Remove Right Hinge Screws
  • Remove the two screws from the right hinge.

Remove the two screws from the right hinge.

Step 11

  • Insert a screwdriver or spudger under the hinge to get it started then rotate it open by hand as far as possible.

Insert a screwdriver or spudger under the hinge to get it started then rotate it open by hand as far as possible.

Step 12

              Remove Left Hinge Screws
  • Remove the two screws from the left hinge.

Remove the two screws from the left hinge.

Step 13

Step 14

              Remove the display assembly
  • Lift the palm rest assembly from the front then slide it away from the hinges slightly to remove the assembly from the display.

Lift the palm rest assembly from the front then slide it away from the hinges slightly to remove the assembly from the display.

Step 15

              Touchpad
  • Flip up the retaining latch securing the touchpad cable to the motherboard.

Flip up the retaining latch securing the touchpad cable to the motherboard.

Step 16

  • Pull the ribbon from the motherboard laterally off the touchpad.

Pull the ribbon from the motherboard laterally off the touchpad.

Step 17

  • Using the Phillips #1 screwdriver, remove the three 3.2 mm screws holding the touchpad to the laptop.

Using the Phillips #1 screwdriver, remove the three 3.2 mm screws holding the touchpad to the laptop.

Step 18

  • Carefully lift up on the keyboard ribbon cable and the insulating sheet immediately below it so the touchpad can clear them.
  • Lift the touchpad slightly from the top.
  • Pull the touchpad toward the motherboard as you continue to lift it, sliding it out from under the retaining fingers at the bottom.

Carefully lift up on the keyboard ribbon cable and the insulating sheet immediately below it so the touchpad can clear them.

Lift the touchpad slightly from the top.

Pull the touchpad toward the motherboard as you continue to lift it, sliding it out from under the retaining fingers at the bottom.

Step 19

  • Remove the touchpad.
  • When reinstalling:
  • Make sure the touchpad goes underneath the two retaining fingers when reinstalling it.
  • The touchpad is correctly aligned when the guide pins next to the left and right screws are inserted in the holes.

Remove the touchpad.

When reinstalling:

Make sure the touchpad goes underneath the two retaining fingers when reinstalling it.

The touchpad is correctly aligned when the guide pins next to the left and right screws are inserted in the holes.

Step 20

              Disconnect the Speakers
  • Pull the black ribbon attached to the speakers out of the motherboard.

Pull the black ribbon attached to the speakers out of the motherboard.

Step 21

              Speakers
  • Pry the right speaker up with your hand to remove.

Pry the right speaker up with your hand to remove.

Step 22

  • Thread the speaker under the black ribbon towards the left to allow removal of the left speaker.

Thread the speaker under the black ribbon towards the left to allow removal of the left speaker.

Step 23

  • Pry up the left speaker to remove it.
  • Remove both speakers.

Pry up the left speaker to remove it.

Remove both speakers.

Step 24

              Keyboard Cable
  • Peel the yellow tape off the black keyboard ribbon cable on the motherboard.
  • Use a spudger to slide the black tabs on either side of the connector forward slightly.
  • Pull the black ribbon straight towards you to remove it from the motherboard.

Peel the yellow tape off the black keyboard ribbon cable on the motherboard.

Use a spudger to slide the black tabs on either side of the connector forward slightly.

Pull the black ribbon straight towards you to remove it from the motherboard.

Step 25

  • Flip up the tabs over the two white ribbons on the left using your finger.
  • For more information on Zero Insertion Force (ZIF) connectors, please visit this guide.
  • Pull the ribbons out of the motherboard by the blue tabs.

Flip up the tabs over the two white ribbons on the left using your finger.

For more information on Zero Insertion Force (ZIF) connectors, please visit this guide.

Pull the ribbons out of the motherboard by the blue tabs.

Step 26

  • Using the Phillips #1 screwdriver, remove four 6 mm screws.
  • Using the same Phillips #1 screwdriver, remove five 3 mm screws securing the metal plate to the motherboard.

Using the Phillips #1 screwdriver, remove four 6 mm screws.

Using the same Phillips #1 screwdriver, remove five 3 mm screws securing the metal plate to the motherboard.

Step 27

              Remove Motherboard
  • Remove the metal plate over the motherboard.
  • Remove the motherboard.

Remove the metal plate over the motherboard.

Remove the motherboard.

Step 28

              Remove the LED Cable
  • Flip up the latch on the cable going from the I/O board to the LED board.

Flip up the latch on the cable going from the I/O board to the LED board.

Step 29

  • Grasp the ribbon cable and pull it straight out to the right.

Grasp the ribbon cable and pull it straight out to the right.

Step 30

              Remove the Motherboard Cable
  • Flip up the latch on the cable from the I/O board to the motherboard.

Flip up the latch on the cable from the I/O board to the motherboard.

Step 31

  • Grasp the ribbon cable by the blue plastic reinforcement and pull the cable straight out to the right.

Grasp the ribbon cable by the blue plastic reinforcement and pull the cable straight out to the right.

Step 32

              Remove the Retaining Screw
  • Remove the single screw securing the I/O board.

Remove the single screw securing the I/O board.

Step 33

  • Remove the I/O board.
  • When reinstalling, be sure the hinge goes above the I/O board, not below it.

Remove the I/O board.

When reinstalling, be sure the hinge goes above the I/O board, not below it.

Step 34

              Disconnect the LED board
  • Flip the retaining latch up with a spudger.

Flip the retaining latch up with a spudger.

Step 35

  • Pull the cable straight out away from the front of the computer.

Pull the cable straight out away from the front of the computer.

Step 36

              Remove the LED board
  • Remove the single retaining screw securing the LED board.
  • Remove the board.
  • When reassembling, ensure the board is seated on the guide pin before reinstalling the retaining screw.

Remove the single retaining screw securing the LED board.

Remove the board.

When reassembling, ensure the board is seated on the guide pin before reinstalling the retaining screw.

Step 37

              Remove the I/O board cable
  • The cable between the I/O board and the motherboard is lightly adhered to the plastic insulator on the keyboard. Pull up from the right to free the cable from the adhesive.

The cable between the I/O board and the motherboard is lightly adhered to the plastic insulator on the keyboard. Pull up from the right to free the cable from the adhesive.

Step 38

              Remove the LED cable
  • The LED cable runs from the LED board to the I/O daughter card. It is lightly adhered to the keyboard. Remove it by gently pulling it away from the keyboard.

The LED cable runs from the LED board to the I/O daughter card. It is lightly adhered to the keyboard. Remove it by gently pulling it away from the keyboard.

Step 39

              Keyboard has been removed
  • All components have now been removed from the keyboard / palm rest assembly.

All components have now been removed from the keyboard / palm rest assembly.

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

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Author

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                    Jerry W

Member since: 03/21/2022

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