Apple: Mouse Not Scrolling _hot_

The optical sensor or touch surface can be blocked by dirt or oils.

: A full system reboot can often clear background process errors. New Magic Mouse USB-C Does Not Scroll - Apple Communities apple mouse not scrolling

Boot into (hold Shift during startup on Intel Mac; on Apple Silicon, shut down, then press and hold power button until “Loading startup options” appears, select Macintosh HD, hold Shift, click Continue in Safe Mode). The optical sensor or touch surface can be

Flip the mouse over and slide the power switch to off (no green showing). Wait 30 seconds and switch it back on. on Apple Silicon

Wipe the glass top with a slightly damp, lint-free microfiber cloth.