# Personal Computer VAIO Pro 11/13SVP1122/SVP1322

## What should I do if my VAIO computer does not recognize the USB device?

- Check if the USB device is on and using its own power supply.

  - If you are using a digital camera, check if the battery is charged.

  - If you are using a printer, check if the power cable is connected properly to an AC outlet.

- You may need to install a USB driver for the USB device before connecting the device. Refer to the manual that came with the USB device for more information.

- Try using another USB port on your VAIO computer. The USB driver could be installed to the specific port you used the first time you connected the device.

- USB hubs may prevent the USB device from working because of a power distribution failure. We recommend you connect the device directly to your VAIO computer without a hub.

- Check if a USB storage device is available.

  The USB ports are disabled if Disabled is selected for the USB ports in the BIOS setup screen. In such a case, change the BIOS setting. See Restricting the Use of Built-in Devices for more information.

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