I just got this keyboard, it's not my first corsair keyboard with RGB but I didn't really use iCUE because it's so complicated.
I downloaded the iCUE software by selecting "gaming keyboards" and then choosing "K70 RGB, RGB LUX, RGB RAPIDFIRE, RGB MK.2, LOW PROFILE"
I first wanted to see if I could make it all 1 color with instant lighting but that didn't work, so I then I tried to have two different static colors but wasn't saving either.
Yes, I've clicked on the save icon.
Now, when I exit iCUE the LEDs turn off except for the windows lock and light dim/brightness