Difficulty

Moderate

Steps

11

Time Required

                          15 - 20 minutes

Sections

3

  • Acer Chromebook CB5-312T-K 8Z9 Back Cover
  • 2 steps
  • Battery
  • 2 steps
  • Motherboard
  • 7 steps

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  • BackAcer Chromebook CB5-312T-K 8Z9

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What you need

Step 1

              Acer Chromebook CB5-312T-K 8Z9 Back Cover
  • First begin by flipping the laptop on its back and having the back cover face you directly.
  • Then unscrew the ten Phillips head screws that hold down the back cover using a Phillips #0 Screw Driver.

First begin by flipping the laptop on its back and having the back cover face you directly.

Then unscrew the ten Phillips head screws that hold down the back cover using a Phillips #0 Screw Driver.  

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Step 2

  • Using a plastic spudger, open the back cover and remove it from the laptop.

Using a plastic spudger, open the back cover and remove it from the laptop.

Step 3

              Battery
  • look for the battery in the bottom half of the computer
  • Once you have found the battery, look for the screws that secure the battery, in the upper left and right corners.

look for the battery in the bottom half of the computer

Once you have found the battery, look for the screws that secure the battery, in the upper left and right corners.

Step 4

  • Begin by unscrewing the two Phillips head screws that hold down the battery using a J1 sized screwdriver.
  • Finally remove the battery from the laptop.

Begin by unscrewing the two Phillips head screws that hold down the battery using a J1 sized screwdriver.

Finally remove the battery from the laptop.

Step 5

              Motherboard
  • Remove the yellow tape covering the ribbon cable in the bottom left of the motherboard as shown.
  • Carefully remove the ribbon cable out from the connector.

Remove the yellow tape covering the ribbon cable in the bottom left of the motherboard as shown.

Carefully remove the ribbon cable out from the connector.

Step 6

  • Fold up the grey cover to release the ribbon cable in the bottom right of the board as shown.
  • Carefully pull out the ribbon cable from the port by the blue tape.

Fold up the grey cover to release the ribbon cable in the bottom right of the board as shown.

Carefully pull out the ribbon cable from the port by the blue tape.

Step 7

  • Fold up the white cover to release the ribbon cable in the top left of the board as shown.
  • Carefully pull out the ribbon cable from the port by the blue tape.

Fold up the white cover to release the ribbon cable in the top left of the board as shown.

Step 8

  • Fold up the grey cover to release the cable on the top right of the board as shown
  • Carefully pull out the cable from the port.

Fold up the grey cover to release the cable on the top right of the board as shown

Carefully pull out the cable from the port.

Step 9

  • Remove the cable with tweezers as shown along the top of the board.

Remove the cable with tweezers as shown along the top of the board.

Step 10

  • Carefully pull off both brass connectors from the top left of the board with tweezers as shown.

Carefully pull off both brass connectors from the top left of the board with tweezers as shown.

Step 11

  • Remove the six screws from the board as shown. There are two types of screws here, so be careful to keep them separate for reassembly.

Remove the six screws from the board as shown. There are two types of screws here, so be careful to keep them separate for reassembly.

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

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                    Robert McCullough

Member since: 09/25/2017

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Team

                       University of North Texas, Team S1-G4, Thompson Fall 2017                        

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                                            10 Guides authored

leerandmcnally - Aug 12, 2018

Reply

thanks for the write up! do you know where the bluetooth is on the motherboard? I presume step 10 are the connections to the wifi antennae?

Blake Klein - Aug 15, 2018

This Chromebook likely uses a dual chip which can be seen in step 10. I’m guessing the chip is a 802.11AC 2x2 MIMO WLAN + Bluetooth 4.0 from looking at the specs.

loudikov - Oct 22, 2018

Reply

wich is the firmware write protect screw on the motherboard to cheng the os to win10 ??

Roberto Giuffrè - Nov 5, 2020

This is an ARM MT8173 machine, no Windows 10 for this hardware… Win10 for ARM is still on ARM based Surface, and gives poor experience.

Celine Gaidot - Jan 4, 2021

Reply

Bonjour,

J ai un chromebook CB5-312T quelle carte mère je dois acheter et où mon chromebook ne s allume plus.

Merci