MacBook guide
MacBook Keyboard Not Working? Diagnose the Pattern
Use the pattern of failed MacBook keys to identify debris, liquid, settings or hardware issues.
One failed key and an entire unresponsive row often have different causes. Recording exactly what fails helps make diagnosis faster.
What the symptoms can mean
Sticky individual keys may involve debris or mechanical wear. Multiple keys, backlight faults or failures after a spill can indicate a cable or top-case problem.
What to do next
Restart the Mac, test in another app and check keyboard settings. Avoid spraying cleaner beneath the keys. After liquid exposure, switch off and disconnect power.
When to arrange a diagnosis
If the problem continues after safe basic checks, a proper diagnosis is the best next step. It helps separate a replaceable part from a deeper board, power or software issue before any repair is approved.
