Recently I've bought a used thinkpad 10 and later I discovered that the USB port does not work even with normal thumb drive. I discovered that the port has no power at all. Until I connect it to a powered USB hub only then it able to detect USB device. Is anyone here ever encountered this kind of problem? My thinkpad 10 is the 1st generation 2 GB RAM & 64 GB HDD windows 8.1. It has fingerprint reader and 4g card.