原帖由： Julian ,
I had something similar happen recently to one of my controllers. I did basically the same thing you did only I de-soldered the whole stick to clean the potentiometers, but did not get any improvement. The only thing which worked for me was to de-solder the whole analog stick assembly and solder in a new one. As a side not I also saw a goo on my sticks, but after replacing the stick and getting a better look at the stuff I just decided it was some kind of lubricant from the factory.