When the laptop keyboard is locked, we can try the following methods to unlock it.
First, the easiest way is to restart your computer. The keyboard usually unlocks automatically after the computer restarts.
If restarting doesn't work, we can try entering safe mode. In safe mode, the keyboard is automatically unlocked and system repairs can be performed or recently installed software can be uninstalled.
Another common method is to hold down the "fn" and "NumLock" keys at the same time to unlock. This shortcut combination works on some laptops.
If only letters are locked, we can try to turn off the laptop's numeric keyboard function and check whether letters can be entered normally.
If some functions are locked (such as letters or numbers, etc.), we can try to use the Shift key to unlock the function.
Another option is to restore the notebook to factory settings and test again whether you can enter letters, symbols, etc. normally.
If the above method still does not solve the problem, there may be a hardware failure. At this time, it is recommended to open the back cover of the laptop and check whether the keyboard cable is loose or damaged. If a problem is found, please re-plug the cable; if no problem is found, it needs to be sent for repair to ensure that the problem can be repaired more securely.
It should be noted that the above methods are all solutions provided when the laptop keyboard is locked, and are not guaranteed to be suitable for all models and brands of devices.