Possibly broken volume down (-) button

Hi Luis,

Since you don't hear it click, the problem might be related to either the volume button or one of the switches of the volume button on the small circuit board.

ifixit provides an excellent installation guide how to replace the volume button. It is classified as being easy. So, I would give it a try and buy a new volume button and/or a circuit board.

However, in regard to figuring out if you need both parts or only one of them, I would do the following:

Remove the switch/circuit board of the volume button and lay it on the table (the two round contacts or "eyes" on top). Take a pencil and use the side of the eraser, slightly pushing on each of the two contacts several times. Both contacts need to "click" or at least allow you to "feel" the "click". If this is the case, you can be sure that the volume switch is still ok and you don't need to replace it. I would then check the volume button. Is it broken, smashed/beat-up at one place through the fall?

Steffen