My phone was only charging when I pushed the charger in as hard as I could. I cleaned out the port with a toothpick, but now it's very finicky. It will only charge in USB mode instead of AC, and it's much too slow even after I replaced the battery. Sometimes I have to twist or push the charger around to get it to connect at all. I think the pins are damaged somehow, but they are as straight and clean as I can get them. Other micro usb ports I've compared it to look much sturdier, but this one has very thin, flimsy pins!