Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement

简介

A power button that also functions as a fingerprint reader for an easier way to log in. A press of this button feels minuscule, soft, and is even quiet. The component itself is really only the fingerprint reading function, as the component that powers on the computer is the I/O board.

你所需要的

步骤 1 Base Cover

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Base Cover: 步骤 1 中的图像 1，2

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Base Cover: 步骤 1 中的图像 2，2

Remove the eight M2 5mm screws that secure the base cover using a Phillips #0 screwdriver.

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步骤 2

Loosen the three captive screws that secure the base closer to the hinges.
Do not attempt to remove the three captive screws! You need only to loosen them. They're supposed to stay on the base cover.

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步骤 3

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement: 步骤 3 中的图像 3，3

Carefully pry the base cover using an iFixit opening tool in the crevice near the hinges. Guide the pick along the edges and slightly lift upwards as you go along.
Do not start from the speaker end of the edges when opening, or you may cause further damage to your device!

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步骤 4

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement: 步骤 4 中的图像 3，3

Carefully remove the base cover from the laptop.

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步骤 5 Wireless Card (NIC)

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Wireless Card (NIC): 步骤 5 中的图像 1，3

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Wireless Card (NIC): 步骤 5 中的图像 2，3

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Wireless Card (NIC): 步骤 5 中的图像 3，3

Remove the screw holding down the small bracket for the wireless card using a Phillips #0 screwdriver.
Remove the black wired connection from the port over the black triangle.
Remove the wire with the white marking from the port above the white triangle.
Pull the Wi-Fi card out of its slot.

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步骤 6 Fan

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Fan: 步骤 6 中的图像 1，2

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Fan: 步骤 6 中的图像 2，2

Gently remove the I/O cable.

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步骤 7

Remove the fan cable from the motherboard.

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步骤 8

Remove two 3 mm screws that secure the fan using a Phillips #0 screwdriver.

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步骤 9

There is a little piece of tape/sticker on the fan that connects it to the heat sink. Gently remove this.
Lift the fan off the palm rest assembly.

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步骤 10 Heatsink

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Heatsink: 步骤 10 中的图像 1，2

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Heatsink: 步骤 10 中的图像 2，2

Loosen seven 3 mm captive screws securing the heatsink to the motherboard using a Phillips #0 screwdriver.

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步骤 11

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement: 步骤 11 中的图像 3，3

Lift the heatsink off the motherboard.

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步骤 12 Display Assembly

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Display Assembly: 步骤 12 中的图像 1，2

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Display Assembly: 步骤 12 中的图像 2，2

Ensure that you have your device opened flat at a 180 degree angle. This will make removal easier.

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步骤 13

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement: 步骤 13 中的图像 3，3

Locate the ribbon cables for the assembly on the right hand side marked "MB1" and "MB2."
The "MB1" ribbon is locked with a copper/brass colored handle that must be lifted upwards. Then you can remove the ribbon by pulling it away from the socket.
The "MB2" ribbon is locked in its socket with a black latch. Using a non-metallic precision tool (such as tweezers) lift the latch and pull away the MB2 cable.

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步骤 14

Remove the two screws holding down the assembly on the right hand area using a Phillips #00 screwdriver.

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步骤 15

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement: 步骤 15 中的图像 3，3

Remove the screw protecting the endpoints of the NIC cables and NIC chip using a Phillips #0 screwdriver.
Gently pull away the cabling from the NIC chip.
The wires can be removed without removing the heat sink, though this is not advised if you are not familiar with the layout.

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步骤 16

Remove the two screws holding down the bracket of the assembly on the left hand side using a Phillips #0 screwdriver.

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步骤 17

Lift the display assembly upwards away from the palm/main assembly.

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步骤 18 I/O Board (SD and x2 USB ports)

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, I/O Board (SD and x2 USB ports): 步骤 18 中的图像 1，2

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, I/O Board (SD and x2 USB ports): 步骤 18 中的图像 2，2

Lift the latch holding down the ribbon cable on the I/O board, then pull it away using the blue tab.
Lift the I/O board upwards to remove it from the assembly.

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步骤 19 Power Button w/ Fingerprint Reader

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Power Button w/ Fingerprint Reader: 步骤 19 中的图像 1，3

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Power Button w/ Fingerprint Reader: 步骤 19 中的图像 2，3

Dell Inspiron 17" 7786 2-in-1 Power Button w/ Fingerprint Reader Replacement, Power Button w/ Fingerprint Reader: 步骤 19 中的图像 3，3

Lift the latch holding down the ribbon cable. Remove the cable away from the port.
Remove the screw holding down the button in place using a Phillips #0 screwdriver.
Grabbing the cushioning of the button, lift it upwards from the assembly.