Hi there. Could you please give me an advice? I have a MacBook Air 2013. Sometime before I couldn't change my keyboard illuminate in a sun (Mac showed me illuminate with cross-cycle and I couldn't change it manually (it was blocked)) and everything was fine. But. Now I can change illuminate manually (it is not a problem, sure) but It doesn't change illuminate in low-light. Checkbox is checked (I tried to do anything with it), I did reboots and SMC drops. Nothing helps. I'm sure that it is software problem because sensor is works (display brightness changes when I come to the low-light room) Thanks a lot in advance.