Logitech Far East YR0012 User Manual

Getting started with

OFFON

Battery management

Your keyboard has up to three years of battery life and your mouse has up to one.*

Battery sleep mode

Did you know that your keyboard and mouse go into sleep mode after you stop using them for a 
few minutes? This feature helps limit battery usage and eliminates the need to keep switching your 
devices on and off. Both your keyboard and mouse are up and running immediately once you begin 
using them again.

How to check the battery level for the keyboard

Press and hold the FN key, then press the F12 key: If the LED 
glows green, the batteries are good. If the LED glows red, the 
battery level has dropped to 10% and you have only a few days 
of battery power left. You can also turn the keyboard off then 
back on using the On/Off switch on top of the keyboard.

Battery status indicator

How to check the battery level for the mouse

Turn the mouse off then back on using the On/Off switch on the mouse 
bottom. If the LED on top of the mouse glows green for 10 seconds, the 
batteries are good. If the LED blinks red, the battery level has dropped to 
10% and you have only a few days of battery power left.

LED

* Battery life varies with usage and computing conditions. Heavy usage usually results in shorter battery life.

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Mouse bottom

On/Off 
switch

Mouse top

Logitech® Wireless Combo MK520

Plug it. Forget it. Add to it.

You’ve got a Logitech® Unifying receiver. Now add 
a compatible wireless keyboard or mouse that uses 
the same receiver. It’s easy. Just start the Logitech® 
Unifying software* and follow the onscreen instructions. 
For more information and to download the software, visit

www.logitech.com/unifying

*Go to Start / All Programs / Logitech / Unifying / Logitech Unifying Software

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Troubleshooting

Keyboard and mouse are not working

Check the USB connection. Also, try changing USB ports. 

Move closer? Try moving the keyboard and mouse closer to 

the Unifying receiver, or plug the Unifying receiver into the receiver 
extender cable to bring it closer to the keyboard and mouse.

Check battery installation. Also check the battery power of each device.  
(See Battery management for more information.)

Getting started with

On the mouse bottom, slide the On/Off switch right to turn on 
the mouse. The Battery LED on the mouse top case should light green 
for 10 seconds. (See  Battery management for more information.)

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Mouse bottom

On/Off 
switch