[Q] Headset issue Lenovo A536 topic

I am using Lenovo A536 since past one month. I am facing a strange problem. When I connect my headset shows as disconnected for a brief moment and reconnects itself. Due to this whenever I'm playing music or videos, they stop. It has been bugging :( me too much. I had contacted the lenovo service centre, where a factory reset was done, the motherboard was changed and I even got a replacement headset. However the same problem exists. Can anyone help me?