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Logitech M305 was working properly for close to 10 years. suddenly the scroll wheel only scrolls up a few lines before stopping. I scroll down the page without issue, but when I reverse to scroll up it only goes a few lines. Have been searching solutions proposed in "similar questions" to no avail. Switching on natural scrolling appears to make it worse.

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First unplug the mouse. In the battery compartment there are probably a couple of screws, open the case. Then blow out the wheel sensor with air (by mouth or canned air, etc.).

A few drops of isopropyl (rubbing) alcohol in the wheel sensor can clean it out nicely, the alcohol will evaporate quickly.

If it is a wireless USB mouse try connecting the dongle with a USB extension and put it where the signal is not blocked by the computer case, I tried this on a problem mouse and it improved performance.

B. Fife
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