Sound on my Iphone 4 isn't working?

Whenever I try to turn the volume up it says 'Headphones.' The sound works through my headphones but when I take the headphones out it won't switch back to playing through my speakers. Is it jammed? Can I do anything to fix it?

Try this support thread: https://discussions.apple.com/...2?tstart=0

OR

1) Restart iPhone (Switch it off and then turn it back on)
2) Plug the earphones in and take it out (repeat a few times)
3) Blow dry the headset port (with hair dryer) - could be due to moisture in there
4) If none of the above works - set up a genius appointment with Apple and request for service due to most likely hardware issue

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