My volume buttons don't work on my phone

[AC Question]

My volume buttons don't work on my phone

 

[B. Diddy]

Welcome to Android Central! Which phone? Can you adjust the volume from the Settings>Sound menu? If so, then the volume buttons are probably defective or damaged, and need to be replaced. If you can't adjust the volume in the menu, then something might be wrong with the system--does it persist after a reboot?