Turn off the device. I bought one a week or two ago, only to find that it would intermittently cut out…. Remove the batteries from the device. This worked for several people on here including me. I was mislead by the "dummy battery" inside the battery compartment, think that it was positive terminal facing upwards. I tried to put old batteries back in and bought new batteries 3 times, but still nothing. I got this mouse about a month ago, and it's worked fine, up until now. If your laptop supports an internal trackpad, disable it through your … After I reverse the battery terminal, with positive terminal inserted facing down, keyboard works like a charm. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/3\/33\/Replace-Batteries-on-an-Apple-Magic-Mouse-Step-1-Version-2.jpg\/v4-460px-Replace-Batteries-on-an-Apple-Magic-Mouse-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/3\/33\/Replace-Batteries-on-an-Apple-Magic-Mouse-Step-1-Version-2.jpg\/aid1288946-v4-728px-Replace-Batteries-on-an-Apple-Magic-Mouse-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"