Broken usb ports are a common problem on laptops. If the customer moves the laptop with something connected they may hit the external storage and break the internal usb port. The USB port runs on 5 volts with two data ports and a positive and negative pins. Thats four pins on the usb. Can you see the four connections for the USB?. The whole laptop needs to be opened and the port has to be replaced. Laptop motherboard repairs should always be carried out by an experienced engineer. For all your usb ports that are broken ask us for free advice and help. Call 407-715-7622 for UBS port repair for only $50!