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Lenovo ThinkPad T470 Power Button Board Replacement

Introduction

Use this guide to replace the power button board in your Lenovo ThinkPad T470.

The power button board contains the button that turns on the computer when pressed. Diagnosing a faulty power button may be tricky since some of the symptoms are similar to a faulty battery or AC adapter. If you are pressing the power button but your laptop is not turning on, take a look at this Lenovo ThinkPad troubleshooting manual before attempting a power button board replacement.

If you need to perform a replacement, make sure to disable the internal battery, power down your device, and disconnect from any external power sources before you begin.

What you need

  1. Lenovo ThinkPad T470 Power Button Board Replacement, External Battery: step 1, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement, External Battery: step 1, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement, External Battery: step 1, image 3 of 3

    • Before you begin this guide, make sure to disable the internal battery, power down your device, and disconnect from any external power sources.

    • Place the laptop so that the bottom is facing upwards.

    • Slide the latch on the left side of the battery to the left until it clicks in place.

    Edit

  2. Lenovo ThinkPad T470 Power Button Board Replacement: step 2, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 2, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 2, image 3 of 3

    • Slide the latch on the right side of the battery to the right and hold it in place with your thumb.

    • Use your other hand to slide the battery towards the back of the laptop.

    • Lift the battery up and away from the laptop.

    Edit

  3. Lenovo ThinkPad T470 Power Button Board Replacement, Internal Components: step 3, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement, Internal Components: step 3, image 2 of 2

    • Use a Phillips #1 screwdriver to loosen the six captive screws on the bottom cover of the laptop.

    Edit

  4. Lenovo ThinkPad T470 Power Button Board Replacement: step 4, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 4, image 2 of 2

    • Place the laptop so that the top is facing upwards.

    • Open the lid of the laptop.

    Edit

  5. Lenovo ThinkPad T470 Power Button Board Replacement: step 5, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 5, image 2 of 2

    • Place your fingers on the bottom edge of the keyboard.

    • Use a small amount of pressure to push the keyboard towards the screen.

    Edit

  6. Lenovo ThinkPad T470 Power Button Board Replacement: step 6, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 6, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 6, image 3 of 3

    • Grab the bottom edge of the keyboard with your hands, and flip the keyboard upside-down, so it rests on the bottom of the laptop.

    • Potential for device damage: The keyboard is still attached to the rest of the laptop, so be gentle when flipping it over.

    Edit

  7. Lenovo ThinkPad T470 Power Button Board Replacement: step 7, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 7, image 2 of 2

    • Use the flat end of a spudger to flip up the locking flaps securing each of the two ribbon cables.

    Edit

  8. Lenovo ThinkPad T470 Power Button Board Replacement: step 8, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 8, image 2 of 2

    • Use your hands to lift the keyboard up and away from the laptop.

    Edit

  9. Lenovo ThinkPad T470 Power Button Board Replacement: step 9, image 1 of 1

    • Close the laptop's lid and flip the laptop over so that the bottom is facing upwards.

    Edit

  10. Lenovo ThinkPad T470 Power Button Board Replacement: step 10, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 10, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 10, image 3 of 3

    • Use your hands to pull up on the back cover and release the plastic clips starting on the bottom side of the battery compartment.

    • Potential for device damage: Be sure to detach the plastic clips in this area first. You risk cracking the bottom cover if you attempt to detach it from around the edges of the laptop first.

    • Use your hands to pull up on the right side of the bottom cover to release the plastic clips.

    • Use your hands to pull up on the left side of the bottom cover to release the plastic clips.

    Edit

  11. Lenovo ThinkPad T470 Power Button Board Replacement: step 11, image 1 of 1

    • Remove the bottom cover from the laptop.

    Edit

  12. Lenovo ThinkPad T470 Power Button Board Replacement: step 12, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 12, image 2 of 2

    • Use a Phillips #1 screwdriver to remove two 5 mm screws from the internal battery.

    Edit

  13. Lenovo ThinkPad T470 Power Button Board Replacement: step 13, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 13, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 13, image 3 of 3

    • Use your hands to lift the battery up and away from the laptop.

    Edit

  14. Lenovo ThinkPad T470 Power Button Board Replacement: step 14, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 14, image 2 of 2

    • Use your fingers to flip the black flap covering the top stick of RAM down.

    Edit

  15. Lenovo ThinkPad T470 Power Button Board Replacement: step 15, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 15, image 2 of 2

    • Use your thumbs to push the metal clips on either end of the RAM outwards.

    • The RAM will pop up by a few millimeters.

    Edit

  16. Lenovo ThinkPad T470 Power Button Board Replacement: step 16, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 16, image 2 of 2

    • Use your fingers to lift the RAM out of its socket and away from the laptop to remove it.

    Edit

  17. Lenovo ThinkPad T470 Power Button Board Replacement: step 17, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 17, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 17, image 3 of 3

    • Use your fingers to flip the black flap covering the bottom stick of RAM up.

    • Use your thumbs to push the metal clips on either end of the RAM outwards.

    • The RAM will pop up by a few millimeters.

    Edit

  19. Lenovo ThinkPad T470 Power Button Board Replacement: step 18, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 18, image 2 of 2

    • Use your fingers to lift the RAM out of its socket and away from the laptop to remove it.

    Edit

  20. Lenovo ThinkPad T470 Power Button Board Replacement: step 19, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 19, image 2 of 2

    • Use the flat end of a spudger to flip up the metal clip securing the SSD connector to the motherboard.

    Edit

  21. Lenovo ThinkPad T470 Power Button Board Replacement: step 20, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 20, image 2 of 2

    • Use the flat end of a spudger to separate the connector from its socket.

    Edit

  22. Lenovo ThinkPad T470 Power Button Board Replacement: step 21, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 21, image 2 of 2

    • Grab the tab on the left side of the hard drive, and pull up to remove it from the laptop.

    Edit

  23. Lenovo ThinkPad T470 Power Button Board Replacement: step 22, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 22, image 2 of 2

    • Use a finger to press the black flap covering the Wi-Fi card down.

    Edit

  24. Lenovo ThinkPad T470 Power Button Board Replacement: step 23, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 23, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 23, image 3 of 3

    • Use the flat end of a spudger to disconnect the two coaxial wires from the Wi-Fi card.

    • When reassembling, reattach the gray wire on the left and the black wire on the right.

    Edit

  25. Lenovo ThinkPad T470 Power Button Board Replacement: step 24, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 24, image 2 of 2

    • Use a Phillips #1 screwdriver to remove the single 4 mm screw from the Wi-Fi card.

    Edit

  26. Lenovo ThinkPad T470 Power Button Board Replacement: step 25, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 25, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 25, image 3 of 3

    • Use your fingers to lift the Wi-Fi card up and out of its slot.

    • This laptop does not include a WWAN card, but if yours does, follow the same procedure as Steps 9-12 to remove it.

    Edit

  27. Lenovo ThinkPad T470 Power Button Board Replacement: step 26, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 26, image 2 of 2
    Tool used on this step:
    Tweezers
    $4.99
    Buy

    • Use a pair of blunt nose tweezers to pull the white connector out of its socket.

    Edit

  28. Lenovo ThinkPad T470 Power Button Board Replacement: step 27, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 27, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 27, image 3 of 3

    • Grab the wire attached to the coin cell battery, and lift it up and out of the laptop.

    Edit

  29. Lenovo ThinkPad T470 Power Button Board Replacement: step 28, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 28, image 2 of 2

    • Use a pair of blunt nose tweezers to pull the white fan connector out of its socket on the motherboard.

    Edit

  30. Lenovo ThinkPad T470 Power Button Board Replacement: step 29, image 1 of 1

    • Use a Phillips #1 screwdriver to loosen the first pair of captive screws on the fan and heat sink assembly in a crosswise pattern.

    • Use a Phillips #1 screwdriver to loosen the second pair of captive screws on the fan and heat sink assembly in a crosswise pattern.

    Edit

  31. Lenovo ThinkPad T470 Power Button Board Replacement: step 30, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 30, image 2 of 2

    • Use your hand to pull the fan and heat sink assembly up and away from the laptop.

    • Clean the thermal paste from the heatsink and CPU and reapply fresh paste before reassembling.

    Edit

  32. Lenovo ThinkPad T470 Power Button Board Replacement, Motherboard: step 31, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement, Motherboard: step 31, image 2 of 2

    • Use the flat end of a spudger to flip up the metal clip securing the LCD cable to the motherboard.

    Edit

  33. Lenovo ThinkPad T470 Power Button Board Replacement: step 32, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 32, image 2 of 2

    • Use the flat end of a spudger to disconnect the LCD cable from its socket on the motherboard.

    Edit

  34. Lenovo ThinkPad T470 Power Button Board Replacement: step 33, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 33, image 2 of 2

    • Use the flat end of a spudger to flip the power button cable's black tab up.

    Edit

  35. Lenovo ThinkPad T470 Power Button Board Replacement: step 34, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 34, image 2 of 2

    • Use the flat end of a spudger to slide the power button cable out of its connector on the motherboard.

    Edit

  36. Lenovo ThinkPad T470 Power Button Board Replacement: step 35, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 35, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 35, image 3 of 3

    • Use your fingers to detach the red and blue antenna cables from their slots.

    Edit

  37. Lenovo ThinkPad T470 Power Button Board Replacement: step 36, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 36, image 2 of 2

    • Use a Phillips #1 screwdriver to remove the two 4 mm screws from the USB bracket.

    Edit

  38. Lenovo ThinkPad T470 Power Button Board Replacement: step 37, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 37, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 37, image 3 of 3

    • Use your fingers to lift the USB bracket up and away from the laptop.

    Edit

  39. Lenovo ThinkPad T470 Power Button Board Replacement: step 38, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 38, image 2 of 2
    Tool used on this step:
    Tweezers
    $4.99
    Buy

    • Use a pair of blunt nose tweezers to disconnect the DC-in cable from its socket on the motherboard.

    Edit

  40. Lenovo ThinkPad T470 Power Button Board Replacement: step 39, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 39, image 2 of 2

    • Use the flat end of a spudger to flip up the metal bracket securing the camera cable to the motherboard.

    Edit

  41. Lenovo ThinkPad T470 Power Button Board Replacement: step 40, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 40, image 2 of 2

    • Use the flat end of a spudger to disconnect the camera cable from its socket on the motherboard.

    Edit

  42. Lenovo ThinkPad T470 Power Button Board Replacement: step 41, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 41, image 2 of 2

    • Use a pair of blunt nose tweezers to disconnect the speaker cable from its socket on the motherboard.

    Edit

  43. Lenovo ThinkPad T470 Power Button Board Replacement: step 42, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 42, image 2 of 2

    • Use the flat end of a spudger to flip up the black tabs on the trackpad and fingerprint reader cables.

    Edit

  44. Lenovo ThinkPad T470 Power Button Board Replacement: step 43, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 43, image 2 of 2

    • Use a pair of blunt nose tweezers to slide the trackpad and fingerprint reader cables out of their connectors on the motherboard.

    Edit

  45. Lenovo ThinkPad T470 Power Button Board Replacement: step 44, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 44, image 2 of 2

    • Use a Phillips #1 screwdriver to remove the three 4 mm screws from the I/O bracket.

    Edit

  46. Lenovo ThinkPad T470 Power Button Board Replacement: step 45, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 45, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 45, image 3 of 3

    • Use your fingers to slide the I/O bracket to the left.

    • Lift the I/O bracket up and away from the laptop.

    Edit

  47. Lenovo ThinkPad T470 Power Button Board Replacement: step 46, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 46, image 2 of 2

    • Use a Phillips #1 screwdriver to remove the six 4 mm screws from the motherboard.

    • This laptop does not have an NFC cable, but if yours does, use the flat end of a spudger to flip up the tab and slide the cable out of its connector.

    Edit

  48. Lenovo ThinkPad T470 Power Button Board Replacement: step 47, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 47, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 47, image 3 of 3

    • Use both hands to lift the motherboard up and away from the laptop.

    Edit

  49. Lenovo ThinkPad T470 Power Button Board Replacement, Power Button Board: step 48, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement, Power Button Board: step 48, image 2 of 2

    • Use a Phillips #1 screwdriver to remove the two 4 mm screws from the power button board.

    Edit

  50. Lenovo ThinkPad T470 Power Button Board Replacement: step 49, image 1 of 2 Lenovo ThinkPad T470 Power Button Board Replacement: step 49, image 2 of 2

    • Peel up the white ribbon cable.

    • Potential for device damage: The cable may be attached to the laptop with strong adhesive, so be cautious not to tear it.

    Edit

  51. Lenovo ThinkPad T470 Power Button Board Replacement: step 50, image 1 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 50, image 2 of 3 Lenovo ThinkPad T470 Power Button Board Replacement: step 50, image 3 of 3

    • Use your fingers to lift the power button board up and away from the laptop.

    Edit
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 other people completed this guide.

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