Help, my laptop's keyboard works perfectly fine last night. Until this morning when i open it, the 'e g h b n' and some other keys won't work. I know my + key is malfunctioning and it used to type out by itself. Some of the effected keys are 'e g h' as it would display 'e+ g+ or h+' when I pressed them. A week before the + key has stop working and my keyboard was just fine. But today when I tried pressing the e and + at once, it will come out 'e+- e+-----'. Do I need to replace the whole keyboard or is there other ways to fix it?
You can disassemble down to the keyboard, depending on your model will determine difficulty, and try blowing it all out with compressed air, but generally, unless there is a mechanical keyboard, the entire keyboard unit would need to be replaced.