Quick Help-Side Buttons

[Ag47]

I am not sure where to post this but I badly needed it.

I need some electronics engr or someone who has a knowledge about Electronics Devices.

can anyone of you can tell me what kind of tact switch is on the side buttons where volume key found

please tell me exactly each of them (volume, power and camera)

 

[Guytronic]

Not sure what you need here.

Are you trying to do repairs?
Lumia 520 tear down