Symptoms
- Keyboard stopped responding right after a drop or impact
- Other functions (screen, trackpad) still work normally
- Visible damage to the case near the keyboard
- Some keys work while others don't, in a pattern
Likely causes
- CommonInternal keyboard ribbon cable was jarred loose by the impactA loose connector is a common and relatively simple-to-fix consequence of a drop.
- CommonPhysical damage to the keyboard assembly itselfImpact can crack or damage the switch matrix beneath the keys.
- PossibleCase deformation from the drop pressing on the keyboard from underneathA bent chassis can put pressure on the keyboard even without directly damaging it.
- PossibleMotherboard damage affecting the keyboard controllerMore likely if other functions are also behaving oddly.
What to do
- Test with an external USB or Bluetooth keyboard to confirm whether other input and system functions still work normally.
- Inspect the case closely near the keyboard for any visible cracking, warping, or gaps that weren't there before.
- Avoid pressing keys forcefully while troubleshooting, since a damaged assembly can worsen with pressure.
- Restart the laptop to rule out a temporary glitch caused by the impact, though this is less likely with sudden, complete unresponsiveness.
- If it's safe and you're comfortable doing so, check whether the bottom panel shows any obvious internal damage without fully disassembling the laptop.
- If the keyboard is unresponsive with no clear external cause, this needs a technician's inspection of the internal connector and assembly.
Tools and parts
- External USB or Bluetooth keyboard (for testing)
Replacement keyboard assemblySearch: “[laptop model] keyboard replacement”
When to call a pro
A drop-related keyboard failure usually needs a technician to check the internal ribbon cable connection and assess for further impact damage.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.