1) Make Use Of The Keyboard Shotcut keys or Esc key. Once you find it, press the Fn Key + Function Lock key simultaneously to enable or disable the standard F1, F2, … F12 keys. Voila!Jun 12, 2021
Most of the time, the Fn keys stopped working because someone accidentally pressed the Fn lock key. The Fn lock key also impacts other toggle keys such as Caps Lock or Num Lock so it's easy to find out if the Fn keys are locked. On your keyboard, look for an Fn, F lock, or F Mode key.Oct 25, 2021
Method 1. Toggle the Fn Lock key All you have to do is look on your keyboard and search for any key with a padlock symbol on it. Once you've located this key, press the Fn key and the Fn Lock key at the same time. Now, you'll be able to use your Fn keys without having to press the Fn key to perform functions.
On most HP and Compaq notebook computers, it is necessary to press and hold the function key (fn) while pressing one of the f1 through f12 keys to activate the default functions; such as, increasing or decreasing the brightness of the display, the sound volume, sleep, keyboard lock, etc.Jan 5, 2018