Mac Keyboard Stopped Working Fix

A keyboard that suddenly stops working has a handful of usual causes. For built-in MacBook keyboards: 1) Reset SMC - shut down, hold power for 10 seconds on Apple silicon. 2) Boot into Safe Mode (hold power until startup options, then Shift+Continue). If keyboard works in Safe Mode, a kext or login item is the cause. 3) Check Slow Keys and Sticky Keys are off in System Settings → Accessibility → Keyboard. 4) Liquid spilled recently?

Shut down immediately, dry upside-down for 48 hours, don't try to power on. For external keyboards: 5) Re-pair via Bluetooth. 6) Check batteries. 7) Try a different USB port for wired keyboards. 8) Test the keyboard on another Mac to isolate.

If the built-in keyboard still fails after software resets, the issue is the keyboard's flex cable or membrane - replace via the top-case assembly. We do this at our Dubai workshop with same-day turnaround.

If it is a wireless Magic Keyboard that keeps disconnecting while other devices work, the problem may be the Mac, which is MacBook Bluetooth repair territory.

Most of the dead keyboards that reach the Media City bench are one of two things. Either the keyboard flex connector has a green crust on it from an old spill the owner forgot about, or a row of keys failed together, which points to the membrane rather than the cable. We check the connector first because it takes ten minutes and sometimes a clean and reseat brings everything back. If it does not, the whole top case is replaced, because Apple bonds the keyboard into it.

Summer humidity in Dubai speeds the corrosion up, so a spill in June shows symptoms faster than one in January. One more thing we see often: a MacBook carried in a bag with the charger still plugged in, which bends the port and shorts a trace near the keyboard connector. The repair is still the top case, but the port gets checked too.