LED Indicator Light
1, When the indicator light blinks, it means the laptop number keypad is being connected. If it suddenly blinks after a long time of connection, it serves as a reminder that the battery needs to be replaced.
2, By default, the numeric key function is enabled when the indicator light is on.
3, To toggle the numeric key function off and enable the arrow key function, simply switch the "Num Lock" key. You will know that the switch has taken effect as the indicator light turns off.