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Lenovo ThinkPad T480s Motherboard Replacement

Introduction

Use this guide to replace the motherboard in your Lenovo ThinkPad T480s laptop.

The motherboard, also known as a system board or mainboard, is the primary printed circuit board (PCB) in a computer that enables communication between the internal components.

Diagnosing a faulty motherboard is tricky since the symptoms are similar to other failing components. Signs of a faulty motherboard may include overheating, error codes, the blue screen of death, or failure of other ports and components.

Make sure to disable the internal battery, power down your device, and disconnect from any external power sources before you begin.

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  1. Lenovo ThinkPad T480s Motherboard Replacement, Bottom Cover: étape 1, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement, Bottom Cover: étape 1, image 2 de 2

    • Disable the battery, power down the device, and unplug the power adapter from your device before proceeding/beginning the guide.

    • Loosen the six captive screws with a Phillips #1 screwdriver.

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  2. Lenovo ThinkPad T480s Motherboard Replacement: étape 2, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 2, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 2, image 3 de 3

    • Remove the bottom cover with an opening tool.

    • Start from the top edge near the hinge and work your way along the edge until all of the clips are unsnapped.

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  3. Lenovo ThinkPad T480s Motherboard Replacement: étape 3, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 3, image 2 de 2

    • Lift the bottom cover off.

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  4. Lenovo ThinkPad T480s Motherboard Replacement, Battery: étape 4, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement, Battery: étape 4, image 2 de 2

    • Use the Phillips #1 screwdriver to remove four 4.5mm screws that hold the battery down to the mid frame.

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  5. Lenovo ThinkPad T480s Motherboard Replacement: étape 5, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 5, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 5, image 3 de 3

    • Lift the battery near the connector and remove it from the system.

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  6. Lenovo ThinkPad T480s Motherboard Replacement, Keyboard: étape 6, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement, Keyboard: étape 6, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement, Keyboard: étape 6, image 3 de 3

    • Disable the battery, power down, and unplug your device before you begin.

    • Pry the left and right trackpad buttons up with a spudger.

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  7. Lenovo ThinkPad T480s Motherboard Replacement: étape 7, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 7, image 2 de 2

    • With a Phillips #0 screwdriver, loosen the two captive screws underneath the left and right trackpad buttons.

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  8. Lenovo ThinkPad T480s Motherboard Replacement: étape 8, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 8, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 8, image 3 de 3

    • Wedge the spudger under the front edge of the keyboard to push the keyboard toward the back of the system.

    • Lift the front edge of the keyboard up by a few millimeters.

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  9. Lenovo ThinkPad T480s Motherboard Replacement: étape 9, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 9, image 2 de 2

    • Gently, pull the keyboard out from the bezel and flip it over.

    • It is connected to to the keyboard and trackpad cables so be sure not to yank it over to avoid tearing them.

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  10. Lenovo ThinkPad T480s Motherboard Replacement: étape 10, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 10, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 10, image 3 de 3

    • Use the spudger to disconnect the trackpad cable from the system.

    • For more information on types of connectors, check out this guide.

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  11. Lenovo ThinkPad T480s Motherboard Replacement: étape 11, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 11, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 11, image 3 de 3

    • Use the spudger to disconnect the keyboard cable from the system.

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  12. Lenovo ThinkPad T480s Motherboard Replacement: étape 12, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 12, image 2 de 2

    • Lift the keyboard off of the palm rest.

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  13. Lenovo ThinkPad T480s Motherboard Replacement, SSD: étape 13, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement, SSD: étape 13, image 2 de 2

    • Use the Phillips #1 screwdriver to remove one 2.8 mm screw securing the SSD.

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  14. Lenovo ThinkPad T480s Motherboard Replacement: étape 14, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 14, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 14, image 3 de 3

    • Pull the SSD out of the socket.

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  16. Lenovo ThinkPad T480s Motherboard Replacement, RAM: étape 15, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement, RAM: étape 15, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement, RAM: étape 15, image 3 de 3

    • Pull the plastic film back.

    • Push the clips outward to release the RAM stick.

    • My device doesn't have RAM so you don't see it.

    • The RAM stick will pop out at an angle. Pull the RAM stick out at the same angle.

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  17. Lenovo ThinkPad T480s Motherboard Replacement, Wi-Fi Card: étape 16, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement, Wi-Fi Card: étape 16, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement, Wi-Fi Card: étape 16, image 3 de 3

    • Using the nylon spudger, pop the coaxial antenna wires off the Wi-Fi card.

    • When reassembling, reattach the gray wire closest to the screw and the black wire on the other side of the gray wire.

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  18. Lenovo ThinkPad T480s Motherboard Replacement: étape 17, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 17, image 2 de 2

    • Use the Phillips #1 screwdriver to remove one 2.8mm screw holding the Wi-Fi card down to the motherboard.

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  19. Lenovo ThinkPad T480s Motherboard Replacement: étape 18, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 18, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 18, image 3 de 3

    • Slide the Wi-Fi card out from the slot.

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  20. Lenovo ThinkPad T480s Motherboard Replacement, WWAN Card: étape 19, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement, WWAN Card: étape 19, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement, WWAN Card: étape 19, image 3 de 3

    • Flip the cardboard cover off of the WWAN card.

    • Using the spudger, release the coaxial antenna wires from the WWAN card.

    • When reassembling, reattach the blue wire on the left and the orange wire on the right.

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  21. Lenovo ThinkPad T480s Motherboard Replacement: étape 20, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 20, image 2 de 2

    • Use a Phillips #1 screwdriver to remove one 2.8mm screw.

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  22. Lenovo ThinkPad T480s Motherboard Replacement: étape 21, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 21, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 21, image 3 de 3

    • Slide the WWAN card out from the slot.

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  23. Lenovo ThinkPad T480s Motherboard Replacement, Fan Assembly: étape 22, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement, Fan Assembly: étape 22, image 2 de 2

    • Use the spudger to disconnect the fan cable from the motherboard.

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  24. Lenovo ThinkPad T480s Motherboard Replacement: étape 23, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 23, image 2 de 2

    • Loosen the six captive screws attaching the fan assembly to the motherboard.

    • This system was missing the two screws by the fan but I have highlighted them to show where they are located.

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  25. Lenovo ThinkPad T480s Motherboard Replacement: étape 24, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 24, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 24, image 3 de 3

    • Lift the thermal fan assembly from the system and remove it.

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  26. Lenovo ThinkPad T480s Motherboard Replacement, SIM Card Tray: étape 25, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement, SIM Card Tray: étape 25, image 2 de 2

    • Insert the SIM eject bit or a paper clip in the hole of the SIM tray to eject it.

    • Remove the SIM tray.

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  27. Lenovo ThinkPad T480s Motherboard Replacement, Motherboard: étape 26, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement, Motherboard: étape 26, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement, Motherboard: étape 26, image 3 de 3

    • Use the spudger to disconnect the LCD cable from the motherboard.

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  28. Lenovo ThinkPad T480s Motherboard Replacement: étape 27, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 27, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 27, image 3 de 3

    • Use the spudger to disconnect the camera cable from the motherboard.

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  29. Lenovo ThinkPad T480s Motherboard Replacement: étape 28, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 28, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 28, image 3 de 3

    • Remove all antenna cables from their routing.

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  30. Lenovo ThinkPad T480s Motherboard Replacement: étape 29, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 29, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 29, image 3 de 3

    • Use the spudger to disconnect the SD card reader/audio card cable from the board.

    • The cable is attached to the board with adhesive so you will need to peel the cable up.

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  31. Lenovo ThinkPad T480s Motherboard Replacement: étape 30, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 30, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 30, image 3 de 3

    • Use a connector puller or spudger to disconnect the coin cell battery from the board and pull the cable from the notch.

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  32. Lenovo ThinkPad T480s Motherboard Replacement: étape 31, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 31, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 31, image 3 de 3

    • Use the spudger to disconnect the trackpad cable, the Hall sensor cable, and the smart card reader cable from the motherboard.

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  33. Lenovo ThinkPad T480s Motherboard Replacement: étape 32, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 32, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 32, image 3 de 3

    • Disconnect the USB Card cable from the motherboard using the spudger.

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  34. Lenovo ThinkPad T480s Motherboard Replacement: étape 33, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 33, image 2 de 2

    • Use the spudger to disconnect the power button cable from the motherboard.

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  35. Lenovo ThinkPad T480s Motherboard Replacement: étape 34, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 34, image 2 de 2

    • Use the Phillips #1 screwdriver to remove the 4.6 mm screw from the USB-C bracket.

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  36. Lenovo ThinkPad T480s Motherboard Replacement: étape 35, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 35, image 2 de 2

    • Lift the USB-C bracket from the system.

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  37. Lenovo ThinkPad T480s Motherboard Replacement: étape 36, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 36, image 2 de 2

    • Use the Phillips #1 screwdriver to remove the 4.7 mm screw from the trap door.

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  38. Lenovo ThinkPad T480s Motherboard Replacement: étape 37, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 37, image 2 de 2

    • Lift the trap door out.

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  39. Lenovo ThinkPad T480s Motherboard Replacement: étape 38, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 38, image 2 de 2

    • Remove the 4.4 mm screw from the HDMI bracket using the Phillips #1 screwdriver.

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  40. Lenovo ThinkPad T480s Motherboard Replacement: étape 39, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 39, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 39, image 3 de 3

    • Remove the HDMI bracket from the motherboard using your fingers.

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  41. Lenovo ThinkPad T480s Motherboard Replacement: étape 40, image 1 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 40, image 2 de 3 Lenovo ThinkPad T480s Motherboard Replacement: étape 40, image 3 de 3

    • Using the Phillips #1 screwdriver, remove four 3.1 mm screws from the motherboard.

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  42. Lenovo ThinkPad T480s Motherboard Replacement: étape 41, image 1 de 2 Lenovo ThinkPad T480s Motherboard Replacement: étape 41, image 2 de 2

    • Lift the motherboard from the chassis to remove it from the device.

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Conclusion

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

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.

2 autres ont terminé cette réparation.

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Sarah Westberg

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