I'd like to install a modded BIOS to see if that fixes the issue, but it gives me an error. Error code: 2C171/1 I also cannot try the gary method as my G75VW does not want to boot off the USB.

From there, download ASUS Keyboard Hotkeys UAP/Driver while choosing the product model. First, find your way to My ASUS Windows Store. By installing this driver, you can have your system run smoothly. This might as well be the best fix on the list. The ribbon will not go in any further and it does not appear to be damaged. Install ASUS Keyboard Hotkeys UAP/Driver. I then realized that I didn't attach the CPU heatsink properly, so I opened it up again, did that temps are great and now the backlight does not work. Updated the BIOS and it continued to work great.

I did open the system to clean out the fans and replace the thermal paste. Remember to be gentle and angle-in with the RAM, don’t try and push it in 100 parallel. Some PC laptops (including a few Asus machines) do hide one or two of the RAM slots in an extremely tough location, however the G75VW’s RAM slots are both easy-access. I heard this was something to do with a BIOS variable which controls the keyboard's backlight within the ATK. Unlike on a Mac, (cough cough) Ram upgrades on a PC can be surprisingly easy. I checked the connections to the ribbon on the mainboard and everything is good. What do I do? It does not glow when booting either. I updated the BIOS and everything and now it's stopped working. The backlit keyboard just yesterday was working fine.

Asus g75vw keyboard lights not on