Full-Repair.comI'm sorry for not perfect english. In time I'll do a good quality translate. If you could not get anything please feel free to contact me in comments. I will answer you as soon as possible.
If you have suddenly stopped working mouse wheel (for example, as a result of a fall or any impact). Without prior symptoms of pull is enough page up and down while scrolling while spinning freely, it is likely that this article will help you.
Scrolls the mouse wheel
Mouse wheel scrolls the mouse, because it broke! In the truest sense, it has fallen off the plastic axis through which the torque is transmitted to the rotation sensor, repair of which is described in another article: mouse wheel does not work.
This failure is not a reason to throw away the mouse, if you want 20 minutes-30 tricky (if you go to the store for a new mouse, you probably spend at least an hour).
I must say that it is useless to glue, too much of a burden on such a small area to seal the place. Although the author of these lines may be wrong, because he did not even try to glue. If you have a successful experience of sealing these things, I ask people to share in the comments.
I will describe the working and reliable method for repairing a broken wheel mouse. Mouse itself:
Let us examine the Mouse
Loosen the screw at the bottom and disconnect the two housing parts.
External Mouse looks fine, even the wheel just spins, as well as on working mouse. It is that it is not twisted in steps and with virtually no resistance.
Take a closer look inside the mouse:
