The charger sometime wears down the edges of the phone and theirs many easy solutions to this problem by using a tool to add a bit of material around the port to create a holder for the socket. I do it another way and it's a quick fix not something you should do long time. I grab a small piece of foil and fold it flat enough for it to fit in the port with the Charger and it holds it in place perfectly with no problems whatsoever really.