Einleitung
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.
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Place the laptop so that the bottom is facing upwards.
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Slide the latch on the left side of the battery to the left until it clicks in place.
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Slide the latch on the right side of the battery to the right and hold it in place with your thumb.
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Use your other hand to slide the battery towards the back of the laptop.
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Lift the battery up and away from the laptop.
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Use a Phillips #1 screwdriver to loosen the six captive screws on the bottom cover of the laptop.
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Place your fingers on the bottom edge of the keyboard.
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Use a small amount of pressure to push the keyboard towards the screen.
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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.
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Use the flat end of a spudger to flip up the locking flaps securing each of the two ribbon cables.
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Use your hands to pull up on the back cover and release the plastic clips starting on the bottom side of the battery compartment.
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Use your hands to pull up on the right side of the bottom cover to release the plastic clips.
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Use your hands to pull up on the left side of the bottom cover to release the plastic clips.
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Use your fingers to lift the RAM out of its socket and away from the laptop to remove it.
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Use your fingers to flip the black flap covering the bottom stick of RAM up.
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Use your thumbs to push the metal clips on either end of the RAM outwards.
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Use your fingers to lift the RAM out of its socket and away from the laptop to remove it.
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Use the flat end of a spudger to flip up the metal clip securing the SSD connector to the motherboard.
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Grab the tab on the left side of the hard drive, and pull up to remove it from the laptop.
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Use your fingers to lift the Wi-Fi card up and out of its slot.
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This laptop does not include a WWAN card, but if yours does, follow the same procedure as Steps 9-12 to remove it.
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Use a pair of blunt nose tweezers to pull the white fan connector out of its socket on the motherboard.
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Use a Phillips #1 screwdriver to loosen the first pair of captive screws on the fan and heat sink assembly in a crosswise pattern.
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Use a Phillips #1 screwdriver to loosen the second pair of captive screws on the fan and heat sink assembly in a crosswise pattern.
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Use the flat end of a spudger to flip up the metal clip securing the LCD cable to the motherboard.
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Use the flat end of a spudger to disconnect the LCD cable from its socket on the motherboard.
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Use the flat end of a spudger to slide the power button cable out of its connector on the motherboard.
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Use a pair of blunt nose tweezers to disconnect the DC-in cable from its socket on the motherboard.
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Use the flat end of a spudger to flip up the metal bracket securing the camera cable to the motherboard.
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Use the flat end of a spudger to disconnect the camera cable from its socket on the motherboard.
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Use a pair of blunt nose tweezers to disconnect the speaker cable from its socket on the motherboard.
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Use the flat end of a spudger to flip up the black tabs on the trackpad and fingerprint reader cables.
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Use a pair of blunt nose tweezers to slide the trackpad and fingerprint reader cables out of their connectors on the motherboard.
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Use your fingers to slide the I/O bracket to the left.
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Lift the I/O bracket up and away from the laptop.
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Use a Phillips #1 screwdriver to remove the six 4 mm screws from the motherboard.
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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.
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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.
