Bleak k/board backlight Asus ExpertBook

Hello, I bought Asus ExpertBook B1 B1500CEAE as work laptop with keyboard backlight. But after installing OS an drivers, I found out keyboard backlight is a joke. The LED lights barely go through key-caps, as if caps were not made for backlight. Even worse, backlight just has one intensity - it is either on or off. Work with this in even little darker environment is almost impossible.
Do you know possible solution to this/ maybe driver from other model, or can I switch caps from other model, that are actually from transparent plastic?

 

According to Asus what you can do is:
- reset CMOS.
- set BIOS to default.
- update BIOS to the latest version available.

You can also check videos on YouTube about your laptop and how it should backlit work. If you think that yours is not working well, you can think about replacement (in your case you might need to replace the whole cover).