Lenovo Thinkpad X1 Carbon 4Th Gen Display Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

                          50 minutes - 2 hours

Sections

Bottom Panel
2 steps
Coin Cell Battery
2 steps
Speakers
4 steps
Lithium Battery
3 steps
Cooling Fan
6 steps
Wireless LAN Card
4 steps
Motherboard
4 steps
Display
5 steps

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Introduction

The screen uses a ribbon cable to send the information to the motherboard. A loose ribbon cable connection will cause the same issues like a broken screen.

Before using this guide, inspect the ribbon cable connection for a loose or non-existent connection, which has the possibility of making the screen dysfunctional. Be sure to fully reassemble the computer before testing the screen.

Before beginning, make sure to power off your computer completely and disconnect from any external power source.

What you need

Step 1

              Bottom Panel

Unscrew the nine captive screws on the bottom cover of the laptop using a Phillips #1 screwdriver.
The screws do not fully come out of the back cover, so there is no need for screw management.
There are a few small clips around the edge that you may need to pry at to free them. An opening pick may be helpful for this process.

Unscrew the nine captive screws on the bottom cover of the laptop using a Phillips #1 screwdriver.

The screws do not fully come out of the back cover, so there is no need for screw management.

There are a few small clips around the edge that you may need to pry at to free them. An opening pick may be helpful for this process.

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Step 2

Lift the back cover up and off of the computer.

Lift the back cover up and off of the computer.

Step 3

              Coin Cell Battery

Peel back the plastic protective cover above the main battery section to expose the coin-cell’s red and black wires.

Peel back the plastic protective cover above the main battery section to expose the coin-cell’s red and black wires.

Step 4

Gently unplug the coin-cell wires from the connector by pulling horizontally away from the connector.
Lift the coin cell out from the computer.

Gently unplug the coin-cell wires from the connector by pulling horizontally away from the connector.

Lift the coin cell out from the computer.

Step 5

              Speakers

Carefully unplug the speaker connector by pulling it towards you.

Carefully unplug the speaker connector by pulling it towards you.

Step 6

Remove the two 5 mm screws on each speaker with a Phillips #1 screwdriver.

Remove the two 5 mm screws on each speaker with a Phillips #1 screwdriver.

Step 7

Unweave the blue and white wires from underneath the plastic tabs connected to the battery.

Unweave the blue and white wires from underneath the plastic tabs connected to the battery.

Step 8

Lift each speaker up and out from the computer.

Lift each speaker up and out from the computer.

Step 9

              Lithium Battery

Carefully lift the far end of the battery connector with an opening tool facing towards you.
Remove the connector by pushing it forward and lifting.

Carefully lift the far end of the battery connector with an opening tool facing towards you.

Remove the connector by pushing it forward and lifting.

Step 10

Remove the central 5 mm screw with a Phillips #1 screwdriver.

Remove the central 5 mm screw with a Phillips #1 screwdriver.

Step 11

Lift the battery up and out of the computer.

Lift the battery up and out of the computer.

Step 12

              Cooling Fan

Peel off the black protective film to the left of the fan.

Peel off the black protective film to the left of the fan.

Step 13

Do not remove the four screws closest to the fan. They do not affect the fan assembly.
Disconnect the antenna wires on green the wireless LAN card to the left of the fan.

Do not remove the four screws closest to the fan. They do not affect the fan assembly.

Disconnect the antenna wires on green the wireless LAN card to the left of the fan.

Step 14

Lift up the hinge connector that is attached to the fan’s ribbon cable.
Carefully disconnect the cable by pulling outwards from the ribbon connector.

Lift up the hinge connector that is attached to the fan’s ribbon cable.

Carefully disconnect the cable by pulling outwards from the ribbon connector.

Step 15

Loosen the screws on the ‘x’ configuration of metal.
These screws are held on to the metal ‘x’, so don’t worry about them falling out.

Loosen the screws on the ‘x’ configuration of metal.

These screws are held on to the metal ‘x’, so don’t worry about them falling out.

Step 16

Lift the fan upwards from the board.

Lift the fan upwards from the board.

Step 17

It’s best practice to replace the old thermal paste under the ‘x’ configuration of metal. (Guides on how to replace thermal paste can be found here.)

It’s best practice to replace the old thermal paste under the ‘x’ configuration of metal. (Guides on how to replace thermal paste can be found here.)

Step 18

              Wireless LAN Card

Remove the protective film to the left of the fan assembly.

Remove the protective film to the left of the fan assembly.

Step 19

Carefully disconnect the gray and black antenna connectors on the green wireless LAN card by lifting under the antennas with an opening tool.

Carefully disconnect the gray and black antenna connectors on the green wireless LAN card by lifting under the antennas with an opening tool.

Step 20

Remove the 2.5 mm screw holding the card in place with a Phillips #1 screwdriver.

Remove the 2.5 mm screw holding the card in place with a Phillips #1 screwdriver.

Step 21

Carefully slide the wireless card out of the slot by pulling it to the right.

Carefully slide the wireless card out of the slot by pulling it to the right.

Step 22

              Motherboard

Using a Phillips #0 screwdriver, remove the two 5 mm screws securing the USB ports on the righthand side of the motherboard.

Using a Phillips #0 screwdriver, remove the two 5 mm screws securing the USB ports on the righthand side of the motherboard.

Step 23

The white triangle symbol on the motherboard identifies the longer 5mm length screws.
Using a Phillips #0 screwdriver, remove the five 5mm screws.
The white square symbol on the motherboard identifies 2mm length screws.
Using a Phillips #0 screwdriver, remove the four 2mm screws.

The white triangle symbol on the motherboard identifies the longer 5mm length screws.

Using a Phillips #0 screwdriver, remove the five 5mm screws.

The white square symbol on the motherboard identifies 2mm length screws.

Using a Phillips #0 screwdriver, remove the four 2mm screws.

Step 24

Remove the 7 ribbon cables connecting the motherboard to their respective components by flipping up the locking black tabs with a spudger and pulling the cables from their connectors.
Remove the red and blue wires attached to the motherboard.

Remove the 7 ribbon cables connecting the motherboard to their respective components by flipping up the locking black tabs with a spudger and pulling the cables from their connectors.

Remove the red and blue wires attached to the motherboard.

Step 25

Using the plastic opening tool, gently lift up on the motherboard.
If resistance is felt double check to make sure all the screws and ribbon cables are out.
Lift the motherboard out from the computer.

Using the plastic opening tool, gently lift up on the motherboard.

If resistance is felt double check to make sure all the screws and ribbon cables are out.

Lift the motherboard out from the computer.

Step 26

              Display

Notice the location of the screws, as the top outside corner of each side does not get a screw.
Using a Phillips #0 screwdriver, remove the four 5 mm silver screws from the display hinges.

Notice the location of the screws, as the top outside corner of each side does not get a screw.

Using a Phillips #0 screwdriver, remove the four 5 mm silver screws from the display hinges.

Step 27

Using a Phillips #0 screwdriver, remove the two 2 mm screws securing the wires in place.
Gently remove the wires from their tight fit pinch clamps.
Gently wiggle the display brackets back and forth until the display is off.

Using a Phillips #0 screwdriver, remove the two 2 mm screws securing the wires in place.

Gently remove the wires from their tight fit pinch clamps.

Gently wiggle the display brackets back and forth until the display is off.

Step 28

Insert the plastic opening tool into the side of the display in between the gaps, separating the bezel from the rest of the display.

Insert the plastic opening tool into the side of the display in between the gaps, separating the bezel from the rest of the display.

Step 29

Using a Phillips #0 screwdriver, remove the four 2 mm screws securing the display to the cover.

Using a Phillips #0 screwdriver, remove the four 2 mm screws securing the display to the cover.

Step 30

Lift up on the screen.
Disconnect the ribbon cable connecting the circuit board to the display.
Do not remove the Do Not Touch Tape.

Lift up on the screen.

Disconnect the ribbon cable connecting the circuit board to the display.

Do not remove the Do Not Touch Tape.

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

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                    Dylan Wood

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                       The Citadel Military College of South Carolina, Team S2-G12, Eggleston Fall 2020                        

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