Member Avatar for airman22

I have an Acer 244TXV laptop(18 Months old). 5 keys have stopped working. When I plugged a full size keyboard in the same keys would not work. Any suggestions on how I might fix this problem.

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Brief diagnostic note added to the thread: reported five keys stopped working and an external full‑size keyboard showed the same characters failing when attached. That detail greatly narrows the fault path — it can be either a low‑level input/controller issue or an OS/driver/input‑mapping problem. Posts from and point toward hardware or boot‑level causes; the checklist below helps separate those cleanly and suggests safe first steps.

Quick checklist (least invasive first):

  • Test at BIOS/POST or any pre‑OS prompt. If the same key presses do not register before Windows loads, the fault is almost certainly hardware (keyboard matrix, cable, or controller).
  • Boot from an alternate OS (live Linux USB/CD) and try typing in a text editor. Works there → Windows/driver/mapping issue; still broken → hardware.
  • Try a different external keyboard and a different USB port or adapter (rule out a bad port or hub).
  • Map the exact dead keys on a keyboard diagram. If they line up in a row or column that suggests a matrix trace or connector problem; if they’re scattered the controller or firmware is more likely.
  • On the software side (if external keyboard only fails under Windows): check Device Manager → Keyboards (uninstall/reinstall), confirm the correct keyboard layout/language, and look for remapping/filtering utilities or remote‑control software.

Hardware inspection and safe fixes:

  • Power down, remove AC and battery, discharge static. Carefully open the keyboard bezel, check and reseat the flat ribbon cable (lift the latch, withdraw, reinsert). Clean connector contacts with 90%+ isopropyl if corrosion is visible.
  • Inspect for liquid damage or sticky residue; clustered dead keys and visible contamination usually mean the keyboard assembly needs replacement. For laptops this is often cheaper than board repair; if BIOS/POST shows dead keys and reseating/keyboard replacement doesn’t help, the keyboard controller on the mainboard may be failing.

Useful data for diagnosis (what to report): exact dead keys, BIOS/POST result, live‑USB result, whether a second external keyboard/port was tried, and any visible damage or recent spills. If still under warranty, contact Acer before opening the case.

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Member Avatar for whipaway

Well, you have eliminated the KB as the problem, this leads me to believe that the problem is on the MB. Did you get extended warranty?

Member Avatar for hssisodiya

my accer laptop not working on stating windows which function key use to enable keyboard

Member Avatar for hssisodiya

my accer laptop keyboard not working on stating windows which function key use to enable keyboard

Member Avatar for hssisodiya

my accer ms2220 laptop keyboard not working on stating windows which function key use to enable keyboard

Member Avatar for caperjack

my accer ms2220 laptop keyboard not working on stating windows which function key use to enable keyboard

2 laptops here no FN key to enable keyboard on either of them ,i think its default to be working when it boots up windows

Member Avatar for PcTestCard.com

Have you tried safe mode?

The mobo KB controller seems faulty.

hope this helps!
Bill

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