What to do if your computer won't recognize a FireWire or USB device

Try these tips and tricks:

• Make sure the connector is aligned with the port before you insert it.
• Insert the connector straight and completely into the port.
• Make sure the connector is not reversed and being forcefully inserted into the port.
• Check the cable connector. Is it dirty, dusty, or "contaminated"?
• Look at the port. Does it look OK?
• Disconnect any noncompliant devices or cables that are not in use.
• If a device does not work when connected through a second device, try connecting it directly to the computer.
• Use a cable or device you're sure works well.

Tip: Ports are keyed, which means the cable can only be inserted one way. Check that you are inserting the cable into the port with the correct orientation.

If the issue persists, try these steps:

1. Shut down the computer.
2. Disconnect all devices and all other cables, except the keyboard and mouse cable(s).
3. Disconnect the computer from the power outlet and wait for 3 to 5 minutes.
4. Plug the computer back in and turn it on.
5. Reconnect the device(s) (one at a time if there is more than one) and test. Test with each port if you have more than one.

If an individual third-party device leads to the issue, contact the manufacturer for more information and further assistance.