sony Xperia m

[Ayesha 97]

How can I fix my sony Xperia m's defected volume down button?

 

[Titillating]

My general rule of thumb: if you can't properly articulate a problem, then you probably aren't qualified or skilled enough to fix it yourself, and you should probably just bring it to a professional/repair shop. That's not a knock against you or anybody else, just the simple fact of the matter. If you can't give more details on what exactly is wrong with it, there's not much we can do to help you.