If you have a wireless keyboard, the steps for resetting it will vary slightly from a wired keyboard. You will see the keyboard lighting flash if the reset is successful.
With the keyboard unplugged, hold down the ESC key.If you have a K95 RGB Platinum or any MK2 keyboards: Most Corsair keyboards have a reset function for fixing unexpected issues. If you are experiencing unexpected behavior with your keyboard such as lighting issues or unresponsiveness, you can try resetting the keyboard to fix the issue.