How to Fix USB Port Issues. When your USB ports suddenly stop working, the problem can always be tracked down to either a hardware or software failure. Some of these problems are ...

Resolve the “USB Accessories Disabled” error on your Mac with these 11 effective fixes. Improve connectivity, manage power ...

There is a possibility that the USB port is not ... SD card to a different port and check if the problem is fixed or not. This can happen when drivers are accidentally disabled due to user actions ...