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Acer Chromebook CB3-431-C5EX Trackpad Replacement

Acer Chromebook CB3-431-C5EX Trackpad Replacement

Gavin Riley Branyon

Gavin Riley Branyon and 3 other contributors

Last updated on May 16, 2022

20 - 40 minutes
Moderate

Introduction

Go to step 1

If your Acer Chromebook CB3-431-C5EX has cursor problems such as jittering, jumping around, or failing to recognize gestures properly, then it might be time to replace the trackpad. Out-of-date/missing drivers can sometimes cause trackpad issues, so you might want to check and see if this is the case before continuing. If you need to replace your trackpad, be sure to take extra care when disconnecting any cables or wires as they can be fragile.

Prior to beginning this repair, power off your device and unplug from the power adapter.

What you need

Parts

Tools

Show more…

  1. Acer Chromebook CB3-431-C5EX Trackpad Replacement, Bottom Panel: step 1, image 1 of 1

    • Working on your device while it is turned on may result in electric shock. Make sure to shut down and unplug your device before you begin.

    • Turn device over so the bottom panel is facing you.

    Edit

  2. Acer Chromebook CB3-431-C5EX Trackpad Replacement: step 2, image 1 of 1

    • Remove the eight 4mm Phillips #0 screws.

    • Remove the two 6mm Phillips #0 screws.

    Edit

  3. Acer Chromebook CB3-431-C5EX Trackpad Replacement: step 3, image 1 of 2 Acer Chromebook CB3-431-C5EX Trackpad Replacement: step 3, image 2 of 2

    • Insert a plastic opening tool into the crack between the bottom panel and the side of the computer.

    • Gently pry the panel off the computer by continuously pulling up and on the panel and moving the plastic opening tool around the crack until the panel comes off.

    • There are several clips holding the cover in place.

    • Remove the bottom panel and set it aside.

    Edit

  4. Acer Chromebook CB3-431-C5EX Trackpad Replacement, Battery: step 4, image 1 of 1

    • Remove the two 4mm Phillips #0 screws on either side of the battery pack that are securing it in place.

    Edit

  6. Acer Chromebook CB3-431-C5EX Trackpad Replacement: step 5, image 1 of 2 Acer Chromebook CB3-431-C5EX Trackpad Replacement: step 5, image 2 of 2

    • Disconnect the taped white 8-pin cable on the bottom right of the battery pack.

    • Use thumbnail to pull on the small protruding tabs on either side of the connector.

    Edit

  7. Acer Chromebook CB3-431-C5EX Trackpad Replacement: step 6, image 1 of 1

    • Carefully lift the entire battery pack out of the laptop.

    Edit

  8. Acer Chromebook CB3-431-C5EX Trackpad Replacement, Trackpad: step 7, image 1 of 2 Acer Chromebook CB3-431-C5EX Trackpad Replacement, Trackpad: step 7, image 2 of 2

    • Remove the black tape covering the screws connecting the trackpad to the laptop.

    Edit

  9. Acer Chromebook CB3-431-C5EX Trackpad Replacement: step 8, image 1 of 1

    • Remove the three 2.5 mm screws that are securing the trackpad to the laptop using a Phillips #0 screwdriver.

    Edit

  10. Acer Chromebook CB3-431-C5EX Trackpad Replacement: step 9, image 1 of 2 Acer Chromebook CB3-431-C5EX Trackpad Replacement: step 9, image 2 of 2

    • Lift up the black retaining flap on the connector.

    • Slide the blue ribbon cable out of the connector.

    Edit

  11. Acer Chromebook CB3-431-C5EX Trackpad Replacement: step 10, image 1 of 1

    • Lift up the body of the laptop and slide the trackpad out from beneath.

    Edit
Conclusion

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

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