Please note that side buttons require assignment in iCUE to function. If you have configured your mouse and are still having responsiveness issues, you may be able to resolve them with several reset options outlined below. It’s extremely rare for mechanical failure to occur with our mice, so please give these steps a try.
Step 1: Perform a soft reset on the mouse
Step 2: Perform a clean reinstallation of Corsair Utility Engine. This solution often works if the side buttons stopped working immediately after installing/updating iCUE.
Step 3: Create a ticket through our Customer Support Portal so we can provide a firmware reset or replace the device if necessary.