Why This Happens in the First Place

Sticky or sunken keys are among the most common complaints customers bring to us. It is an annoying issue: you are typing, and suddenly one letter registers three times in a row, or a key goes down and does not come back up. Sometimes it just feels softer than the rest. Sometimes it does not press at all.

This is especially common with MacBook Pro 2016–2019 models featuring the so-called "butterfly" mechanism—Apple used very thin plastic legs under the keys back then, which failed from the slightest speck of dust. Since 2019, they switched back to standard scissor-switch mechanisms; things improved, but even these do not last forever.

Main Causes

Debris under the key cap is the most trivial cause. Crumbs, dust, hair—all of this gets under the key cap and blocks its movement. The key starts sticking or fails to press all the way down.

Liquid damage is a more serious issue. Tea, coffee, juice—anything, really. Even a tiny drop dries up and glues the mechanism together. We had a case: someone brought in a MacBook Air 2022 where the "A" key simply would not press. We took it apart and found dried sugar inside from coffee with milk. The owner did not even remember spilling anything.

A broken leg or clip. If a key cap pops off, people often try to snap it back in place themselves—and break the plastic retainer. After that, replacing the mechanism is unavoidable.

Normal wear and tear. On "butterfly" MacBooks, the legs snap from years of use. No spills, no drops—just daily work.

What You Can Try at Home

If a key is sticking and you do not suspect liquid damage, start by blowing it out with compressed air. A can costs around 300 rubles in any computer store.

  1. Turn off your MacBook.
  2. Hold the laptop at about a 75-degree angle—with the screen almost vertical.
  3. Blow compressed air around the key several times, varying the angle.
  4. Turn it on and test.

Sometimes this is enough—a speck of dust flies out, and the key works smoothly again. I would not recommend removing the key cap yourself. On a "butterfly" mechanism, it is very easy to do it wrong and break the clip. On a MacBook from 2019 or newer, it is a bit simpler, but still requires care. If you break it, the repair will cost more.

When You Need a Technician

If compressed air did not help and the key still sticks or does not pop back up, it is time to visit a service center. Especially if:

  • liquid got onto the key, even a small amount
  • the key cap fell off and you tried to snap it back in yourself
  • you have a MacBook Pro 2016–2019 with "butterfly" switches—DIY cleaning here almost always ends in mechanism replacement
  • several keys in a row do not work at once

From our experience: a 2017 15″ MacBook Pro had spacebar and "B" keys double-typing—one press produced two characters. The owner tolerated it for three months before bringing it in. We found debris under both keys, plus one leg was already cracked. We cleaned it, replaced the mechanism on the damaged key—everything was back to normal in an hour and a half.

Cleaning a single key starts at 300 rubles with us, and mechanism replacement starts at 500 rubles per key. If the entire keyboard needs replacement, it depends on the model, usually starting from 4,000 rubles.

If It Did Not Help, Stop By

If blowing it out yielded no results or you are unsure what is going on, visit iClub at 35 Kommunisticheskaya Street in Novosibirsk. Diagnostics are free: a technician will take a look and give an honest assessment of the key—whether it needs cleaning, mechanism replacement, or something more serious. We usually fix it right on the spot.