Repair a broken MX Keys key, step by step

A broken key on a Logitech MX Keys keyboard does not mean you need to buy a new keyboard. Most of the time it is the plastic scissor hinge that splits, not the keycap itself: it is, by far, the part we sell most. A replacement hinge costs €6.99 and a complete key from €8.99, the repair takes less than a minute, and no specific tool is required. This guide explains how to diagnose the failure, choose the right MX Keys replacement keycap for your model and layout, and perform the repair step by step. It applies to the entire MX Keys range (2019 edition, S 2023, Mini, Business, for Mac) and to the Logitech Craft, K950 and Ergo K860, which share the same scissor mechanism; the K380 has its own, covered in a separate guide. Keyspares specialises in Logitech MX Keys repair: since 2024 we have been dismantling second-hand MX Keys keyboards to resell every key, and this MX Keys repair guide reflects what we see at the workbench.

Video tutorial

Play the YouTube video

Video “How to PROPERLY replace a regular Key on a Logitech MX Keys / CRAFT YR0073 YR0064 fix repair remove” by apfeltasten, published on YouTube under the standard YouTube licence: all rights reserved by its author. Keyspares is neither its author nor affiliated with apfeltasten. The player only loads when you click; YouTube may then set cookies (Google privacy policy).

Under 2 minutes: removing the broken key, fitting the hinge, snapping the new key on top.

How to remove an MX Keys key without breaking the clip

Here is the written walkthrough of the video for readers who prefer text. The presenter places the MX Keys keyboard flat, face up, and identifies the key to replace — in the demonstration, a standard letter. Using a fingernail or a thin plastic spudger, they pry the key up from one corner by pulling vertically, never horizontally, to avoid bending the scissor mechanism underneath. The key unclips with a firm but gentle snap. The X-shaped plastic hinge is now visible, held by four metal hooks on the plate. If it is broken, the presenter removes the fragments with the tip of the spudger, then positions the new hinge above the hooks and presses down until two clean clicks are audible. They verify by gently rocking the hinge that it pivots freely. Finally, they place the new keycap on top, character properly oriented, and press firmly at the center with the thumb until a final click. They test by pressing the key several times: the feel must be identical to the neighboring keys, no friction, no abnormal noise. The whole operation takes less than a minute and requires no keyboard disassembly.

4-step method

1. 1

   Remove the broken key

   Insert a fingernail or plastic spudger under one corner of the key and lift vertically. Avoid horizontal movement which would bend the scissor mechanism.

2. 2

   Inspect the hinge

   If the X-shaped hinge remains on the keyboard and is intact, keep it. Otherwise, remove the broken pieces from the four metal hooks on the plate.

3. 3

   Fit the new hinge

   Position the new X hinge above the plate, clip the four arms into the metal hooks until you hear two audible clicks. Verify the arms pivot freely.

4. 4

   Snap the new key on top

   Place the keycap on the hinge, character facing up, and press firmly at the center until you hear a click. Test by pressing: the key should respond without friction.

Recommended tools & parts

To repair without scratching or bending the mechanism, a plastic spudger is the ideal tool. All MX Keys replacement keycaps and hinges are sold individually in our catalog.

Universal plastic spudger

Thin soft-plastic tool to unclip a key without scratching the keyboard or bending the scissor mechanism. €2.50 each.

View the spudger →

MX Keys replacement keycaps

Every key for the MX Keys keyboard, hinge included. Letters, numbers, modifiers, spacebar, arrows. AZERTY, QWERTY, QWERTZ layouts.

Browse the keycap catalog →

Can you replace just the hinge on a Logitech MX Keys key?

Yes. On a Logitech MX Keys, MX Keys S or MX Keys Mini, a key that pops off, wobbles or sinks crooked has usually broken its hinge, not its cap. The hinge is the small plastic X clipped onto four metal hooks under each key. If the cap is intact, only the hinge needs replacing: lift the cap with a fingernail or a plastic spudger, remove the broken pieces of the old X, clip the new hinge onto the four hooks until it pivots freely, then press the cap down in the centre until it clicks. No special tool, no pairing and no firmware update are needed. Keyspares sells the MX Keys hinge on its own for €6.99, €14.99 for three or €17.99 for five; when the cap is cracked too, every replacement key already ships with its own hinge. Long keys such as the spacebar also rely on a metal stabiliser bar.

Identify the broken part

Before ordering, identify exactly which part has failed. If the key simply falls off and replaces back temporarily by pressing but falls again, the plastic X-shaped hinge is most likely split: this is the most common failure. If the keycap itself is cracked, missing, or the printed character is worn off, you need a complete key. If the key sinks without coming back up or no longer responds to the click, the underlying scissor mechanism is damaged — in this case, neither the keycap nor the hinge will suffice, you must consider a keyboard teardown or a complete replacement. The silicone rubber dome that creates the click sits below the scissor and is rarely the cause of a mechanical failure.

What are the options to replace an MX Keys key?

There are four ways to replace an MX Keys key. The first is the Logitech warranty: one year on the 2019 MX Keys, two years on the MX Keys S and Mini, and at least two years in the European Union. It covers manufacturing defects, not a key that was pulled off or broken in a fall, and usually means swapping the whole keyboard with proof of purchase through Logitech support, which does not sell individual keys. The second is second-hand listings such as eBay: you will find lots of keys, but rarely the right key in the right layout and colour, and the hinge is often missing. The third, AliExpress, offers cheap generic keys, with two to four weeks of shipping and variable quality. The fourth is an original part sold individually, as at Keyspares: the exact key from your keyboard, hinge included, delivered in 3 to 7 business days. Beyond eight to ten damaged keys, a refurbished keyboard becomes the better deal.

Choose the right part for your keyboard

The choice depends on three criteria: keyboard model, layout, and color. For the model: MX Keys (920-009295/009415), MX Keys for Mac (920-009558), MX Keys Mini (920-010477/010499), MX Keys S (920-011406), MX Keys Business, Craft, K950, K380, or Ergo K860. For the layout, look under your keyboard: AZERTY FR, AZERTY BE, QWERTY US/UK, QWERTY ES, QWERTY IT, QWERTY PT, QWERTZ DE, or QWERTZ CH. For color, black (graphite) is the most common, white (pale grey) on certain references, blue only on K380. The hinge itself is universal across the entire MX Keys range, excluding K380.

Diagnose common problems after the repair

If the key does not stay in place after replacement, first check that the four arms of the hinge are properly clipped on the metal hooks (sometimes a single audible click can be misleading). If the key sinks but does not return, the underlying scissor is likely deformed: this is a keyboard defect, not a part issue. If the key responds at mid-stroke or requires strong pressure, the silicone rubber dome is worn or compressed — rare but possible on keyboards over 5 years old. If the character fades quickly after installation, it is a printing defect to report for return. No reset, firmware update, or re-pairing is needed after the repair.

Costs and economic alternatives

A replacement key costs from €8.99 for a standard letter, €10.99 to €19.99 for a modifier (Shift, Ctrl, Alt), and €21.90 for the spacebar. The hinge alone costs €6.99, €14.99 for a set of 3, or €17.99 for a set of 5. Tracked letter shipping is €2 in France, €5 to the rest of Europe and €9 outside Europe (North America, Asia-Pacific, United Arab Emirates). To repair 1 to 2 keys, the total cost is around €10-€20, far below a new or refurbished keyboard. Beyond ten or so keys, or if an internal part fails at the same time, a refurbished keyboard becomes worth comparing. For special configurations (custom key, rare layout absent from the catalog), a Custom Order page allows requesting a made-to-order quote.

Advanced repairs: motherboard, battery and keyboard teardown

Beyond replacing a single key, some failures require opening the MX Keys keyboard and swapping internal components. Here are the three most common cases and the parts available individually in our catalog.

Logitech MX Keys repair, one guide per fault

FAQ