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Введение

The keyboard is one of the most frequently used components on a HP ProBook 640 G5 laptop, and issues such as stuck keys, water damage, non-responsive sections, or complete failure are common reasons for replacement. This guide will walk you through the full replacement process, including safely disconnecting the battery, accessing the keyboard ribbon cables, removing the top cover, and installing the new keyboard. Before beginning this repair, power off the laptop and disconnect all power sources.

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Шаг 1 Back Cover

HP ProBook 640 G5 Keyboard Replacement, Back Cover: шаг 1, изображение 1 из 1

Always make sure the HP ProBook 640 G5 is completely powered off and unplugged before beginning this repair. Attempting to open the laptop while it has power may cause electrical damage or personal injury.
Shut down the HP ProBook 640 G5 completely.
Disconnect the power adapter and all connected peripherals.
Press and hold the power button for 5 seconds to discharge remaining electricity.

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Шаг 2

Flip the laptop over so the bottom is facing up.
Loosen eight silver 6mm screws using a Phillips #0 screwdriver.
These screws are captive, so they will loosen but remain attached to the cover.
Remove two black 6mm screws using a TR7 Torx screwdriver.
Insert a plastic opening tool into the seam and gently pry around the edges.
Lift the bottom cover away from the laptop.

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Шаг 3 Keyboard

HP ProBook 640 G5 Keyboard Replacement, Keyboard: шаг 3, изображение 1 из 2

HP ProBook 640 G5 Keyboard Replacement, Keyboard: шаг 3, изображение 2 из 2

Loosen the two captive screws using a Phillips #1 screwdriver.
Both of these screws have keyboard icons next to them.

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Шаг 4

Turn the laptop on its side and open the display panel so the laptop sits upright.
While supporting the keyboard firmly, insert a keyboard release tool into the opening with the keyboard icon.
Carefully turn the laptop right side up.

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Шаг 5

HP ProBook 640 G5 Keyboard Replacement: шаг 5, изображение 3 из 3

The keyboard is held by three cables; do not try and remove the keyboard until all three cables are detached.
Lift the rear edge of the keyboard up gently making sure not to rip or tug on the cable connectors.
Disconnect in order as pictured:
Disconnect the keyboard backlight ribbon cable from the system board.
Disconnect the point stick ribbon cable from the system board.
Disconnect the keyboard ribbon cable from the system board.