If the device isnt recognized, remove the USB device and then re-insert it. Make sure that your device is set to the required mode before connecting it to the car stereo. Some USB devices need to be in a specific mode (such as a Mass Storage Class or Player mode, etc.) before you can use the USB device for playback.

What do you do if your USB is not reading?

Windows cannot detect my new USB device. What do I do?Open Device Manager and then disconnect the USB device from your computer. Wait a few moments and then reconnect the device. Connect the USB device to another USB port.Connect the USB device to another computer.Update the USB device drivers.

Why did my USB ports stop working?

There are several reasons why a USB device is not recognized. You could have a damaged device, or there could be a problem with the port itself. Computer has difficulty detecting USB devices. The USB Selective Suspend feature is on.

Can USB ports go bad?

The implication certainly is that USB ports can go bad. My guess is that its more dirt related than anything else; the connectors are getting a little dirty over time since they are exposed to the elements. The software can get confused, certainly, but thats normally something you can clean up.

How do I reset USB ports?

There are three ways to restart a particular USB port:Reboot the computer. Or Unplug, then re-plug, the physical device connected to the port. Or Disable, then re-enable, the USB Root Hub device that the port is attached to.