Help me please

Aug 7, 2018
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I have mi redme note 5 pro and I use mi headphones as well but today when I was listening music at metro station suddenly my headphones disconnected by its own and when I tried to connect it again i plugg my headphones in jack I got headphones connectivity sign on my screen top but when I wear head phones in my ears I was not able to hear sound becoz their was no sound in headphones. But shows still connected. I change my headphones but face same problems. If my headphones jack is damaged than why my headphones show connected on screen. I had already saw my headphones settings it's normally . I m very disappointed becoz 3 week back I got my new and first personal phone . And I'm big found off listening music . Plz suggest me what should I do now . Should I go to mi showroom and get my phone checked their.