@blazingnet sounds like a bad keyboard. Try a USB keyboard and see if that works. Your keyboard is actually connected via some "molten plastic rivets" to the palmrest. ( top cover of your laptop). There is a way to replace just the keyboard, it's a bit unconventional but should work. Check [https://www.youtube.com/watch?v=qKsCAyWvZvU|this video] and see if you want to tackle it. Otherwise you have to replace the whole top cover.