It is possible that sometimes Let's connect a USB device to our Mac and this for some reason does not work. This can be due to many reasons and we cannot stop trying some things before we make a misstep.
Thinking that the reasons may be that the device we want to connect itself does not work, so before starting to carry out all kinds of checks the best advice is to jump directly to test the device on another computer, but when this is not possible we can carry out other checks that we will see right now.
Another important detail before anything else is check if we have installed the necessary software for the device from the manufacturer's own page or on the web. When all this fails we can take the following steps and really check what the problem is:
- Check the power and cables. Check that the USB device is turned on and that its cables are connected correctly
- Check the USB hub. If the device is connected to a USB hub, make sure the speed of the device and the hub are the same. Connect the devices USB 3.0SuperSpeed to hubs USB 3.0SuperSpeed, the devices USB 2.0high speed to hubs USB 2.0high speed, etc
- If the device does not have a power cable and is connected to another USB device that does not have a cable either. Try connecting the device directly to the USB port of the computer
or to a USB device with a power cord. You may need to disconnect and reconnect the other device as well, in case it has stopped responding
- If you have multiple devices connected to your Mac. Disconnect all USB devices except the one you are testing, an Apple Keyboard, and an Apple Mouse. Check that the device is connected directly to the computer and that any hub or extension cable is disconnected. If you can now use the device normally, it is possible that the problem lies with one of the other devices or USB hubs that you have connected to the computer. Try reconnecting them, one at a time, to the computer. When you find out which device is causing the problem, check your documentation for further troubleshooting instructions
- Check that the device is listed in System Information. On your Mac, choose Apple menu> About This Mac. In the window that appears, click "Overview" and then click the "System Report" button.
Opening System Information can be another of the options that we have available in case of failure, so we will open the window that appears, check if the USB device appears under Hardware in the list on the left. If the device appears but is not working, check the device documentation for more troubleshooting steps.
Finally we can also restart the computer directly or the applications that this connected device uses to functionIn any case, they are the last options we have to check the operation of our USB device.