Logitech MX Master Frequently Asked Questions Manual page 11


If you're still not able to install, and if you have Yosemite or earlier, see the Apple
on how to repair your disk permissions.

Visit the Apple support site to learn how to
pinpoint the problem.
 +Device disconnects or keeps losing Bluetooth connection
Likely Cause(s):

Low battery levels

Plugging the receiver into a USB hub or other unsupported device such as a

KVM switch
NOTE: Your receiver must be plugged directly into your computer.

Using your wireless device on metal surfaces

Radio frequency (RF) interference from other sources, such as wireless speakers, cell phone, and
so on
Symptom(s):

Bluetooth connection keeps dropping

The device doesn't connect to Bluetooth

Button/cursor lagging
Possible solutions:
start your Mac in Safe
support article
Mode. This may help you to