If your keyboard keys stop working, it doesn't necessarily mean they're broken or need replacement. From checking keyboard ...

There are a lot of cool things you can do with the iPhone keyboard, like turning it into a trackpad or using a multitude of gestures to optimize your smartphone experience. That is, of course, when ...

Repeat delay: Controls the time delay before a keystroke repeats when held down. Repeat rate: Determines the speed of repeated keystrokes. Press the Windows key, type Device Manager, and hit Enter.