Dell Inspiron 15 3542 :: Power Button LED And System LED Not Working?

I bought an Inspiron 15 3542 laptop and it works fine; the Power button has an LED which never lights up; also, the system LED at the right bottom (front of the laptop), does not light up all the time. It only lights up in white when I start the laptop from sleep or shutdown. Is this a design flaw or is something wrong with the laptop? I have never seen the Power button LED light up, which is annoying since the keyboard area is always dark without any lights; I have a HP Pavilion which has many blue LEDs on the surface and front of the laptop, so I find it weird not to have any lights on the Dell.