Support

All the Multipurpose USB LEDs will flicker when you first insert it into a USB port. If the LEDs continue to flicker at a fast pace or appear dimly lit, it may indicate that the USB port is running at a low bus voltage, which may prevent Service Center from running. If this occurs, try plugging the Multipurpose USB Device into another USB port (for example, moving from a port on the front to a port on the back). If the issue still occurs, use the PC-Doctor Power Supply Tester to ensure a faulty power supply is not the problem. There may be other problems on the system board that would cause low bus voltage that the Power Supply tester cannot detect.