Introduction

If your Dell Chromebook 3100 2-in-1 fails to turn on, please refer to our troubleshooting guide.

If your laptop is plugged into an outlet with a working adapter, but the device will neither charge nor power on, this is a sign that the charging port is damaged and needs to be replaced. For this configuration, the charging port is on the left when the bottom cover is facing up. Another way to identify the charging port is to look for a Type C port with a lightning bolt symbol on top.

To complete this guide, it is not necessary to remove the battery; instead, the battery connecter can be disconnected to isolate power to the system during the process.

NOTE: The input and output board depends on the configuration ordered. Not all system configurations come with the input and output board.

What you need

Step 1 Back Cover

Dell Chromebook 3100 2-in-1 Input Output Board Replacement, Back Cover: step 1, image 1 of 2

Dell Chromebook 3100 2-in-1 Input Output Board Replacement, Back Cover: step 1, image 2 of 2

First of all, you have to shut down your Chromebook completely, unplug the power cable and remove any accessories like a mouse or USB drive.
Turn the Chromebook upside down so the bottom panel is facing up.
Use your Phillips #1 screwdriver to take out all 5mm screws from the bottom case, keep the screws safe, they’re easy to lose!

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Step 2

Use the opening tool to pry the back cover off of the device.
Gently insert your plastic prying tool between the bottom cover and the keyboard deck.
Work your way around the edges until the case starts to pop open.
Lift off the bottom cover carefully.

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Step 3 Battery

Dell Chromebook 3100 2-in-1 Input Output Board Replacement, Battery: step 3, image 1 of 2

Dell Chromebook 3100 2-in-1 Input Output Board Replacement, Battery: step 3, image 2 of 2

Disconnect the battery cable from the connector on the system board.

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Step 4

Dell Chromebook 3100 2-in-1 Input Output Board Replacement: step 4, image 3 of 3

Using a Phillips #1 screwdriver, remove the three 4 mm screws that secure the battery.
Remove the adhesive tape that secures the battery in place.

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Step 5

Carefully remove the battery from the device.

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Step 6 Input/Output Board

Dell Chromebook 3100 2-in-1 Input Output Board Replacement, Input/Output Board: step 6, image 1 of 2

Dell Chromebook 3100 2-in-1 Input Output Board Replacement, Input/Output Board: step 6, image 2 of 2

Remove all four 4 mm screws that secure the IO bracket and IO board using a Phillips #1 screwdriver.

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Step 7

Dell Chromebook 3100 2-in-1 Input Output Board Replacement: step 7, image 3 of 3

Flip open the retaining flaps on the two cable connectors in the IO board.
Disconnect the 30-pin and 40-pin IO board cables from their connectors on the motherboard.
Disconnect the IO cable from the system board by pulling it out of its socket.