I ordered an extra Lightning cable when I ordered my phone. The one with the phone works, the one that came separate did not. So I call Apple for a replacement, which I received today, along with three others that I ordered separately. Of the four new cables, only one works. They work if I press hard into the charge Jack. But as soon as I let up, the charge symbol goes away. Now I'm starting to wonder if it's my phone? Thoughts?