Acer Chromebook CB3-431-C5EX Trackpad Replacement

Introduction

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 Out-of-date/missing drivers can sometimes cause trackpad issues, so you might want to check and see if this is the case before continuing.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

Step 1 Bottom Panel

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.

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Step 2

Remove the eight 4mm Phillips #0 screws.
Remove the two 6mm Phillips #0 screws.

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Step 3

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.

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Step 4 Battery

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.

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Step 5

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.

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