A pointer that skips across the screen can have several causes. Dust at the sensor opening, debris under the mouse feet and an unsuitable surface are easy things to overlook. Cleaning is a useful check, but it should be one controlled step rather than an excuse to scrub the underside repeatedly.
Switch off the mouse and disconnect any cable used for power or data. Remove user-removable batteries only as the instructions permit. Turn the mouse over in good light and distinguish the sensor opening from the sliding feet and the seams of the case. These areas have different jobs and should not all be treated with the same pressure.
Clear the path without scraping it
Remove visible loose debris using the manufacturer's recommended method. Do not push a sharp object into the sensor opening or scrape its optical surface. If an approved swab or air method is specified, use it gently and exactly as directed. An apparently stubborn speck may be beneath a protective surface rather than something you can safely pick off.
Wipe the accessible exterior and feet with a suitable lightly dampened cloth if permitted. Keep liquid away from openings and allow the mouse to dry fully before powering it again. Do not peel off the feet to clean underneath; they may cover fasteners or lose their intended fit and adhesion when removed.
Clean the place the mouse travels
A dusty or sticky pad can immediately transfer material back to the underside. Clean it according to its own material instructions and let it dry before use. If the desk surface is glossy, patterned or transparent, test the mouse on a clean, compatible pad. Some sensors handle difficult surfaces better than others, so a successful result on another desk is not conclusive.
When tracking remains erratic, stop assuming dirt is the cause. Check battery charge, the receiver or Bluetooth connection and whether a hub is involved. Test one change at a time. A direct connection or a different supported computer can help separate a device fault from the original setup, provided you follow the manufacturer's troubleshooting sequence.
Keep a brief note of where the problem occurs: only on one surface, only while charging or throughout use. That is more useful to support than a list of repeated cleaning attempts. A clean sensor and pad remove one possible cause; they do not prove the electronics or wireless connection are healthy.
