If you own a Lenovo IdeaPad or ThinkPad with a backlit keyboard, follow the steps below to turn the backlight on/off. Here’s how to turn on backlit keyboard Lenovo. Numerous Lenovo laptop models are equipped with a backlit keyboard, and almost all of them have the same keyboard shortcut to enable or disable the feature. How to Turn on Lenovo Backlit KeyboardĪ backlit keyboard on a Lenovo laptop allows you to type even in absolute darkness. Hold the Fn key and then spacebar to activate the toggle that gives you control over the keyboard backlight. Press the Fn + Spacebar or Esc on the keyboard to control the backlit keyboard. You can use a combination of keys to enable or disable the backlight on the keyboard. Not every Lenovo laptop comes with a backlit keyboard, but the ones that come with the feature have an option to turn it on or off as the user wants.