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A quality mouse should last years, but dust, oxidation, and wear can cause failures. Before you throw away your 'broken' mouse, try these professional maintenance and repair techniques.
Sensor: Use a Q-tip dipped in Isopropyl Alcohol (99%) to gently clean the sensor lens. Even a single hair can cause spinouts.
Shell: Wipe down the coating with a damp microfiber cloth. Avoid harsh chemicals that strip the rubberized texture.
Scroll Wheel: Use compressed air to blow out dust from the wheel gap.
If your mouse feels 'scratchy', your PTFE feet are worn. Replace them with aftermarket skates (Corepad, Tiger Ice, Superglide) for a smoother glide. Always remove the old adhesive completely before applying new skates.
Problem: Scroll wheel jumps up/down erratically.
The Fix: The rotary encoder is likely oxidized. Open the mouse, locate the encoder (the square metal part the wheel sits in), and drip a tiny amount of Contact Cleaner (WD-40 Specialist) into it while scrolling.
Problem: Plastic-on-plastic squeaking when clicking.
The Fix: Apply a high-viscosity lubricant (like Krytox 205g0 or Dielectric Grease) to the plastic plungers where they contact the switch. Do not lube the switch internals.
Problem: Rattling sound when moving/lifting mouse.
The Fix: The sensor lens is loose. Open the mouse and tape the lens securely to the PCB using Kapton tape or electrical tape.
© 2026. Warning: Opening your mouse will void your warranty. Proceed at your own risk.