Keyboard backlight / lighting not working

My razer blade 15's keyboard lighting is not working anymore. I uninstalled and reinstalled synapse, even reset the whole laptop and it doesn’t help. Why is the gaming laptop having error with keyboard lighting??? That really sucks!!!! I can’t help with warranty cuz I bought it like 13months ago. Im so depressed. I didn’t even use my laptop enough and now it’s fucked up. Someone plz help me. Can i still fix it?