Chosen Solution
The scroll wheel on my roccat kain aimo 200 wireless mouse does not scroll up or down properly. (appears to get “confused” and scroll up/down at the same time, but occasionally works correctly when scrolling slow)
There is no potentiometer in scroll wheel, it use encoder instead. First you need to open and clean it. Usually encoder is an optical device and sometimes small derbis, dust, hair can cause malfunction.
