I have a Toshiba satellite Laptop p755 model. It was working fine for about a year and half but one day the a, b, n, 7 (on the number pad), Enter and ←(left arrow) suddenly stopped working. The other keys are working fine. I did not drop any liquid on it and I did not install any software that can cause the problem.
I tried using on-screen keyboard and it works fine. I borrowed a USB keyboard from a friend and it, again, worked fine. But I want to use my keyboard.
I've tried the following things as a solution, but to no avail.
- I checked for any driver updates related to the keyboard but there were none.
- I turned off the PC, removed the battery and hold the power button for 15 seconds.