Introduction
This guide demonstrates how to quickly and safely replace the up arrow key on a 2019 Macbook Air. The instructions provided can also apply to any third generation butterfly keyboard on a MacBook.
The up arrow key is essential for navigation, and if that key is not working, the entire device can become unusable. An arrow key on a MacBook may need replacement if it is unusable due to being snapped off, is loose or sticky, or has debris stuck under it. A key that is unresponsive to being pressed most likely needs to be replaced. This guide provides a fast, cheap solution to getting your MacBook’s keyboard working properly.
What you need
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Completely shut down the MacBook before you begin the repair.
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Click the Apple logo in the top right corner of the screen.
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Find and click the "Shut Down" button.
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Wait for the MacBook to completely power off.
Ask FixBot
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Use tweezers or a small thin tool to lift the right side of the key.
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Lift gently until the right side detaches from the clip.
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Push the black keycap, from right to left, then lift gently until it is fully detached.
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Brush away any debris/dust within the key.
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Be careful with the rubber sensor; it is very delicate and can come off.
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Use keyboard cleaner or rubbing alcohol on the end of a cotton swab to wipe any loosened dirt in the key space.
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Place the rubber sensor back into place if it moved during this process.
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Slide the replacement clip into the space from the left.
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Attach the wider, right side of the clip onto the hooks on the right side of the space.
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Gently press the new white clip into place until you hear a click.
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Using tweezers or a thin tool, lift the left side of the clip.
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Place the right side of the replacement key over the right side of the clip.
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Apply pressure to the left side of the key until you hear it snap into place.
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To prevent the keys from needing replacement in the future, regularly clean your MacBook with a keyboard cleaner or brush and keep drinks away from the device.
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UC Davis, Team 2-22, Serviss Fall 2025 Member of UC Davis, Team 2-22, Serviss Fall 2025
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