Introdução
The touchpads of the Dell XPS 15 9550 line may undergo different types of failures throughout its lifespan, whether from liquid/debris damage or dead weighting. We introduce this replacement guide to help you in your journey in replacing these parts.
Part Tracking:
Because the trackpad is a part of the user’s frontal input interface, it is one of the most extensive parts to be disassembled within the device. We highly recommend keeping neat organization of the parts removed as each step goes by, especially the screws. Take note of their size, as one misplaced screw will throw off the whole reassembly.
Advisory Notes:
- Power off and unplug your device before replacement/repair; Remove any external devices such as USBs, external SSDs, etc.
- In addition to keeping track of your parts, you will be handling sensitive electronic parts, including exposed circuit boards and storage devices. Take precautions to avoid creating static such as grounding yourself regularly when interacting with these components. You can do so by touching solid, unpainted metal to release static charge from your hands. This will prevent damage and discourage dust from collecting in the workspace.
- If you desire to clean these components, avoid using electronic vacuums and let cleaning solutions/solvents dry before reassembling.
- To ensure the success of this replacement, please follow instructions of each step by going from top to bottom of the bullet-points.
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Lift up the system badge door.
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Remove the two 8 mm screws using a Phillips #1 screwdriver.
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Remove the ten 3 mm screws around the edge of the back case using a T5 Torx screwdriver.
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Remove the back cover.
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Remove the four 4 mm screws that hold down the battery using a Phillips #1 screwdriver.
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Unplug the cable connection between the system board and the battery, then remove the battery.
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Unplug the cable in the upper-right corner of the hard drive connected to the system board.
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Remove the hard drive.
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Remove the single 4 mm screw from the bracket in the upper left corner using a Phillips #1 screwdriver.
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Remove the bracket.
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Unclip the antenna cables attached to the top of the wireless card.
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Slide the wireless card out from its slot.
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Remove the single 2 mm screw from the bracket below the fan on the right side using a Phillips #0 screwdriver.
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Remove the bracket.
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Remove the two 4 mm screws from the right-side fan using a Phillips #1 screwdriver.
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Remove the fan.
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Remove the six 3 mm screws from the heat sink using a Phillips #1 screwdriver.
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Remove the heat sink.
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Remove the display from the palm-rest board. You may need to adjust and re-adjust the hinges in order to remove the display.
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Remove the four 2 mm screws from the speakers using a Phillips #0 screwdriver.
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Carefully unwind the speaker cables from the palm-rest board and remove the component.
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Remove the five 4 mm screws from the motherboard using a Phillips #1 screwdriver.
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Remove the motherboard.
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Lift up the black tab of the backlight connection and unplug the backlight cable.
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Lift up the white tab of the keyboard connection and unplug the keyboard cable.
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Lift away the yellow tape connecting the keyboard to the palm-rest board. It is not necessary to remove the yellow tape completely.
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The Mylar covering the middle of the keyboard has stencil tabs; each stencil tab marks a screw under it. Lift up each stencil tab using a razor.
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Remove the 31 1.5 mm screws from the keyboard, including the screws under the yellow tape and Mylar, using a Phillips #0 screwdriver.
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Remove the keyboard.
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Remove the two screws above the touchpad using a Phillips #0 screwdriver.
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Remove the touchpad.
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To reassemble your device, follow these instructions in reverse order.
