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Hi, I have problem with my mouse Logitech MX anywhere. Red light blinking and unifying adapter does not recognize it on my Windows 10. Unifying software try to connect, but in the moment when switch mouse on, leave information that could not connect to device and retry button. Red light blinking (1 long and then three short times). I also try on OS X. Same problem. Thanks in advance

When it blinks for me with a red light then I need to change the batteries. Also have the same mouse.

I tried disassembling mine one time. I noticed the same led lighting pattern when I tried switching the device on without connecting the cable attached to the laser sensor. So, it’s possible that some part of the laser sensor assembly on your device might not be working properly or somehow the cable might have come loose.