Why is my charging port not working ? Sm-t310

I have a samsung sm-t310 tab 3 8.0 i bought a new charging port no everytime you charge it you have to mess with the port plug. Did i get a crappy port or could it be something else help? I have already replaced the battery, it will charge sometimes just not normal plug and charge

from Android Forums at AndroidCentral.com - Ask a Question http://ift.tt/2vxfBzX
via IFTTT