Wireless keyboard malfunctions
1 - Doesn't light up, doesn't print.
Or it lights up when charging, but still does not work.
Needs to be replaced
2 - The LED under the "light bulb" icon flashes
Check if the receiver (small flash drive from the keyboard) is inserted into the computer. Try inserting it into another usb - on the other side of the computer, or check on another computer.
Press fn + rf keys - this will reconnect the keyboard and the receiver (small flash drive from the keyboard).
3 - Some of the keys work and some don't
May occur if you use the keyboard while it is charging. Remove it from the charger before use.