Why is my device suddenly became soundless?

How can I fix my device? My real player and music player suddenly stops producing sound, even my phone's Call and message alert does'nt produce any sound at all. Is my phone's speaker already damaged?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2942205:01crwdne2942205:0:

Are there any tones to be heard at all? ie speaker phone when on a call or can you hear the other person during calls? Are your headphones detecting sound? Is the headphone port clean?

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0