Hi,
Mind that if your laptop is still under it's factory warranty I would suggest to contact the manufacturer first for them to repair it so you won't void the warranty but the consequence is it would take them a long time to ship it back to you. If you're confident enough to open the laptop I suggest you open it and observe the physical connection of it and make sure everything it nice and tight. But also before you open it up consider checking the owners manual and check if it's normal that the audio port is like that or not.