I have a Samsung charge. If I plug in the USB charger, the phone goes blank and freezes. This occurs even if the charger is not connected to power, so I suspect there is a loose connection or unseated port. If I remove the battery and replace, letting it reboot, with charger plugged in, it will show the battery status bar as not charging. I carry 2 extra batteries with me, checked the other 2. Sames issue, so I doubt it is the battery.