The n4110 is a great workhorse keyboard, but nothing lasts forever. If you’re having issues with your key, there are a few things you can try to fix it.
If you're having trouble with a key on your n4110 keyboard, this could mean that it's either stuck or broken. If you can't fix the key yourself, then consider taking it in for repair.You'll need to clean the electrical contacts, and then reseat the key on the keyboard. I hope that helps!
If you have a computer with a Dell N4110 keyboard, and the “5” key has stopped working, you can fix it by replacing the keycap. To do this, you're going to need to open up the back of your keyboard, you'll need to flip it over so that the bottom of the keyboard is facing up and then remove the screws on the back near the corners. Hope it worked.