If restarting the computer doesn't work, you'll need to move on to more sophisticated repairs.
- Examine the USB port for any debris. When you don't have a device plugged in, these ports are wide open, making it easy for debris, such as dust or food, to become stuck inside.
- If you detect something trapped inside, turn off your computer and use a thin plastic or wooden object like a toothpick to carefully remove the impediment.
- A device like canned air may be effective in clearing clogs from a USB port in some instances. Just make sure you don't push the impediment in any deeper.
Last Option
Change the USB cord you're using. Because USB cable failures are more prevalent than USB port failures, make sure you have a spare cable on hand. If your gadget suddenly begins to operate, the issue was most likely a damaged wire within the other cord.
