If you are having problem with the backlight of your laptop you will need to replace the inverter. Replacing the inverter is a simple process that takes about 20 minutes and requires no tools.
In order to fix your laptop screen backlight, you’re going to have to remove the screen from the laptop and replace the backlight. The backlight is the light that illuminates the screen and it’s the part that could be broken or damaged.
It is so annoying when the backlight on your laptop screen turns out to be broken, but it is something you can fix yourself. If your screen is completely dark, it may just be a loose connection. If you’re lucky, all you may have to do is reconnect the cable and you’ll be good to go.

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