如何保养你的笔记本电脑以防损坏

How do I fixmy keyboard of connex 14.1 dual core? Problem keystroke( U give me a number 4, keystroke nr 0 give me a /

qwerty456*asdfgh123-'zxcvbn0,,.+ z If I can just switch of the Fn key but I don't know how?please please whatsapp me on 0639632749 my name is Brenda! I am DESPERATE PLEASE!! I have a bluetooth keyboard as well but it connect to the computer and then they ask me to put in the numbers that appear on the screen. But I can not see any numbers on the screen. I think I may have dig into my display and change something there I don't know please help me???😢😢😢😢😱