Samsung SCH-u740 Cellular Phone "fix sound" Questions

compuG i have a samsung u740 and the sound dosnt work without earphones how do i fix this what is my pass key what is my pass key

when i try to make a call the person can hear me but i can' hear them the sound options may be bad configured or it just might be that is damaged so u will have ti fix it 

...sound from headset during call or even rings when phone is ringing out. Phone still works but only when speakerphone is pressed, I'm thinking a hardware issue. Any Ideas? Thank You for your help. ...

sound it will say SILENT MODE ACTIVATED instead. I've went through the whole phone and can 't figure out how to fix it From the standby screen, press and hold the pound (#) key jUST pRESS --->#<

...Sound Issue: Callers and people I call can NOT hear me. I can hear them loud and clear but they can't hear me. Please help - I take care of an elderly couple who need to get in touch with m I ...

...sound but its all static.everything else like the camera and screen is working.can anyone tell me how to fix the static? Just and idea but if it was recent you might still be able to save it. there ...

...when i go outside it works fine i have never had this problem. ive called about it twice, thy fixed it but each time lasted only 2 hours. so i went to metr pcs they did the same thing nothing ...

...sound doesnt work. No matter what I do to adjust the volume the phone wont play any music. What is wrong with this phone? If the phone is not playing music, then the problem has something to do with ...

...a unsupported battery message. The battery is a samsung brand battery. Anyone have a suggestion to fix it? sounds like they sent you the wrong battery some ...

When I try to turn my phone on it shows the Verison Wireless screen then turns off. How do I fix it?? I would make sure that the phone is plugged into a charger when you turn it on. It sounds like the