Magic Mouse (v3.1.1 - lightning connector) Does not work on mousepads suddenly

Since your mouse still tracking effectively on dark solid objects but completely fails on woven fabrics or porous wood textures, the issue is directly related to a focal depth failure or tracking contrast reduction within the internal optical sensor.

Here are the most effective ways to diagnose and potentially resolve this hardware tracking anomaly:

• Perform a Deep Optical Cleaning: A simple blast of air often fails to remove fine oils, static lint, or microscopic moisture films adhering directly to the plastic curvature of the lens window. Turn the hardware power switch off. Take a lint-free microfiber cloth and slightly dampen it with a tiny drop of pure isopropyl alcohol. Gently wipe inside the small tracking aperture to clear any transparent film blocking the light refraction.
• Test the Tracking Surface Reflection: The optical hardware calculates vector speed by tracking microscopic textures. If the internal light source weakens over time, it loses the ability to distinguish loose woven fibers on fabric pads or grain patterns on light-colored wood. Try shifting permanently to a high-contrast dark surface or a solid plastic/aluminum tracking sheet which mimics the properties of the binder where it currently functions.
• Reset the Desktop Bluetooth Subsystem: Sometimes an incorrect hardware polling rate caused by a corrupted wireless profile makes the mouse lag or fail to report minor coordinate shifts on specific physical surfaces. Go to your computer's connection panel, fully remove the mouse profile from your accessory index, plug it directly into the computer using a physical cable for 10 seconds to force a clean re-pair, and disconnect it.
• Check the Plastic Glide Rails: Inspect the two parallel black plastic strips on the bottom of the casing. If these pads have sustained uneven physical wear or accumulated thick debris patches, they can alter the absolute physical gap distance between the sensor window and the table, throwing the optical lens out of its factory focus range.

[Edited by Moderator]