Comment by mrich
What is breaking? FYI, you need to remove the ball from time to time and remove the dust that might be blocking the optical sensors.
What is breaking? FYI, you need to remove the ball from time to time and remove the dust that might be blocking the optical sensors.
Usually sensors stop working. I had a Kensington slimblade whose tracking light just stopped turning on, for example. No amount of cleaning will bring it back.