Logitech G502 Proteus Core Troubleshooting

Cursor moves too slow or too fast.

Adjust the DPI button on the mouse until a desired sensitivity is found. You may also adjust it in the driver software window.

When moving mouse side to side, there is clacking sound.

Consider replacing with a slightly wider rubber wheel, using this guide if necessary.

It is difficult to slide the mouse side to side, often feels as if it catches on something.

Sticker-like feet on the bottom of the mouse may be dirty or need replacing.

Cursor does not move when you move the mouse or scroll wheel.

Clean the sensor area with a microfiber cloth or pick out debris with tweezers. Also, if for the hard to reach areas you can use a dust sprayer to get into the corners.

Check the Logitech website for updates to the firmware, consider enabling automatic updates. Without these updates you are unable to access any of Logitech's great new features that they offer.

The sensor may not be able to track properly on some surfaces, such as glass. Consider using a mouse pad. Having a mouse pad protects your mouse from any bumpy or transparent surfaces.