“My 1yr old wireless keyboard & mouse are not working. I have changed the batteries in both the keyboard and the mouse ( yes they are facing the correct direction). I have unplugged the dongle & powered down comp. what is wrong with my wireless keyboard?”

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• Stupid question: Did you turn it back on? They both have a switch on them.

  Answered by ARW1775 4 years ago

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• For support with the MK540, please refer to: https://support.logi.com/hc/en-us/articles/360023459773 - Will, Logitech.

  Answered by Logitech 4 years ago

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