My name is ***** ***** certified professional with over 10 years experience. I will be glad to assist you with this.
I am sorry to hear that you are having this issue.
Does the FN key have a green light lit on it?
Okay, try this please.
Unplug the power adapter from the laptop and any other externally connected devices. Remove the battery if possible, some are not removable. Then press and hold the power button for 60 seconds. Then power on normally and try the keys again.