Introduction
If your Logitech K480 keyboard is missing a keycap or if it's damaged, you can follow this guide to replace it. Replacing keycaps on rubber dome keyboards can be confusing but these steps are easy for anyone to follow. Keycaps cover the buttons that actually register what you're typing. They provide a more comfortable way to type and can also allow for customization.
Tools
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Starting by the dial, slide the spudger between the front and back panels until it lifts and snaps.
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Slide a blue pick in to keep the pieces apart while you work on other areas.
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Continue prying along the edges until you have enough opened that you can pull both pieces apart gently with your hands.
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Remove the eight 3 mm screws using a Phillips #00 screwdriver
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Remove the five 2 mm silver screws from the metal plate using a Phillips #00 screwdriver.
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Remove the single 4 mm black screw by the motherboard using a Phillips #00 screwdriver.
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To reassemble your device, follow these instructions in reverse order.