Gemibook backlit issue

I’ve noticed two weird things about my Gemibook keyboard backlit.
The first one - when device is powered-off and I press power button backlit always blinks. Not during booting - it just blinks when pressing power button down. Why? I have no idea.

The second one - backlit is always on when booting laptop and I have to turn it off every time, what is annoying for me.
Any ideas how to solve it? Looks like some bugs in Chuwi’s drivers.