Look on the Main BIOS screen for Keyboard Type - backlite. When enabled this option will maintain the brightness level when set by the using the brightness level keys on the keyboard. Note: There may be another option listed under Keyboard Illumination in the System Configuration menu, Keyboard Backlight with AC.

Note: When Keyboard Illumination is not an option, your computer does not have a backlit keyboard.ĭisabled or Off - The keyboard illumination will always be off.ĭim - The keyboard illumination will be at half brightness.īright - The keyboard illumination will be at full brightness. Immediately start pressing the F2 key once a second (when the computer boots into Windows, shutdown the computer and try again).ĭepending on the version of the BIOS on your computer, you will have different options.Ĭlick the + sign next to System Configuration. With the computer completely off, press the power button. Make sure the Keyboard backlit option is enabled in the BIOS. For more information, refer to Dell Knowledge base article What is BIOS and How to Download and Install the latest BIOS?

Make sure the BIOS is updated to the latest version.

Dell inspiron turn on backlit keyboard