MacBook butterfly keyboard sticky or repeating keys — what you can do now

Apple's second-generation butterfly keyboard, shipped on MacBook Pro 2016 through 2019 and MacBook Air 2018 through 2019, has been widely recognised as the worst keyboard Apple ever made. A single crumb can stop a key working. Apple ran a free Keyboard Service Program for years to replace affected units — but that program ended in November 2024. If you've got a butterfly-keyboard MacBook today, you're on your own. Here's what actually works.

Which machines are affected

If your MacBook is one of these, you have a butterfly keyboard:

• MacBook Pro 13-inch and 15-inch, 2016 through 2019
• MacBook Pro 13-inch with Touch Bar, 2019
• MacBook Air, 2018 and 2019
• MacBook (12-inch), 2015 through 2017

The 2020 MacBook Air and later, plus the 2019 16-inch MacBook Pro onwards, went back to the reliable scissor-switch "Magic Keyboard". Those aren't affected.

Symptoms

• Sticky key — doesn't always register when pressed.
• Repeating key — single press produces "aaaa" or "eeee".
• Dead key — does nothing at all.
• Key makes a different sound from its neighbours — often the first warning sign.

Most failures are caused by a single tiny particle lodged under the key mechanism: dust, crumb, pet hair. The mechanism has almost no travel, so any foreign body stops the flex.

1. Compressed air (free, try this first)

Works on about 40% of mild cases.

• Power the MacBook off.
• Hold it at a 75° angle, keyboard facing down and away from you.
• Using a can of compressed air with the straw attached, spray in short bursts across the keyboard in a zig-zag pattern.
• Rotate 90° (so one side is down, the other up), repeat.
• Rotate again, repeat from the other side.
• Let it settle for a minute, then test.

Apple's own guidance recommended this exact procedure. Doesn't always work — if the particle is wedged under the butterfly mechanism rather than in the space between keycaps, air won't shift it.

2. Key cap removal and manual cleaning

Higher success rate but risks breaking the key. If the MacBook is already nearly useless, lower risk than you'd think.

• Use a plastic spudger or a slim credit card corner to lift one corner of the problem keycap. Go slowly — the clips are fragile.
• Lift the cap off. You'll see a "butterfly" hinge underneath with a central rubber dome.
• Use compressed air to blast the mechanism clean.
• If you can see a visible particle, use a dental pick or tweezers (carefully) to lift it out.
• Snap the keycap back on — corners first, then press centre until it clicks.

Don't do this with the spacebar — it has a metal stabiliser and is notoriously easy to break.

Don't pour anything wet onto or under the keyboard — see our liquid spill guide. The butterfly keyboard ties into the topcase with no drainage.

3. The nuclear option — topcase replacement

The keyboard is not a separate replaceable part on butterfly MacBooks. It's integrated into the "topcase" — a single assembly containing the keyboard, trackpad, battery and upper housing. Replacing the keyboard means replacing the topcase.

Costs (UK, 2026):

• Apple out-of-warranty repair: £499-679 depending on model. Sometimes more than the laptop is worth.
• Independent repair with genuine-spec used topcase: £180-280. We stock these for common models.
• DIY (iFixit sells the parts): £150-200 in parts, 2-3 hours of work, challenging difficulty. Only worth it if you're confident with 40+ tiny screws and ribbon cables.

4. External keyboard (the frugal option)

If you mostly use the MacBook docked at a desk, plug in a USB or Bluetooth keyboard. Many people keep butterfly MacBooks running this way for years — the CPU and display are still excellent, just the keyboard is dead.

A half-dead built-in keyboard won't trigger system errors; macOS just ignores keystrokes that don't register. Pair an Apple Magic Keyboard (£99) or any cheap USB one and the MacBook is usable again for £99 instead of £500.

Should I bother fixing it at all?

Depends on the model:

• 2019 MacBook Pro 16-inch — wait, that one is scissor-switch, not butterfly. You're fine.
• 2019 MacBook Pro 13-inch — Intel, butterfly. Fix is usually worth it if the spec and condition are otherwise good.
• 2018-2019 MacBook Air — decent machine, topcase swap is usually worth it.
• 2016-2017 MacBook Pro — older Intel, battery probably tired, software support dwindling. Hard to justify £250 on the keyboard unless you love the machine.
• 2015-2017 12-inch MacBook — cute but slow. Only fix if it has sentimental value.

When to send it in

If compressed air doesn't work and you don't fancy topcase surgery, send it to us. We fit replacement topcases with genuine-spec keyboards, bench-test every key through the macOS Key Viewer, and return the laptop running normally. Typically £180-280 fitted including parts, vs Apple's £499+. Free diagnosis, no-fix-no-fee, 90-day warranty. Post it in for a quote.