![]() ![]() Click on Updates and install any listed for macOS if you’re not on High Sierra yet you can search for it and install as usual. ![]() Updating macOS on your Mac is done using the Mac App Store. Updating your Mac to the latest version of macOS is a reasonably quick and simple process that in most situations is a good idea anyway. Either way, you should now check to see if it’s fixed the problem with the USB port. Your Mac may then restart normally, or you may find that a progress bar appears and fills up before the Mac starts up. Download RestartUsbPort 1.2. (Apple says to let it restart just once we usually listen for a second reboot, then release the keys.) Keep holding them until you hear the Mac restart again. Hold down all of these keys: Cmd, Option (Alt), P and R, and turn on the Mac. But when you shut down the Mac and restart it, all the temporary issues will be resolved. A glitch in the system may be causing the USB port not to respond correctly. Press the power button again to turn the MacBook back on. When it comes to troubleshooting any Apple device, restarting always comes at the top.Release all the keys and the power button.You should see the light on the power adapter change colour or blink to indicate the SMC has been reset. Option keys and the power button at the same time, and hold them down for a few seconds. Make sure the MacBook is connected to power (ie plug the MagSafe power adapter into a power source and connect it to the Mac).Still, the offered functionality is helpful. While it can really be helpful when experiencing issues with this type of hardware, being a CMD app makes it scary to the more inexperienced users. RestartUsbPort is an application that not many will probably employ the help of. It may be necessary to reboot the mac to be sure the kexts are not loaded. It could also be a great way to run maintenance on your ports from time to time, making sure these are functioning properly, as expected. In case of a USB device, OS X uses the vendor id and product id of the device. Regardless, this application is extremely useful if you have issues with drivers and other virtual elements that don't seem to communicate properly with your hardware. You can also extract some basic information from each USB port if available. Click the 'Apple' logo in the top-left corner of your screen and select 'Restart. ![]() Also, one can delay the reset procedure to a certain moment, calculating it in milliseconds. The safest way to reboot your Mac is via the Apple menu. The application will require the user to access full privileges in order to work properly. Quickly punch in this combination of keys: Command + Option + P + R, but. This can be done by using the "RestartUsbPort " command, replacing the port ID in the specified area. Solution 4: Reset NVRAM/PRAM Press your Macs Power button to turn it off. After checking the shown ports, decide which one to reset. Go to Terminal >Type Command sudo kextunload IOUSBMassStorageClass.kext> Press Return. The first thing you'll need to do in order to have some information upon which you'll act later is to request the list of restartable ports. To reset USB C Port on your Mac, follow the quick steps below. This means that restarting the USB ports will also be easy. On the contrary, you'll most likely be able to have it running in a jiffy. If you've dealt with CMD apps before, you'll have no problem. Regardless, the program gives some information as to what particular strings to use for needed actions. It is a CMD-type app, which means you'll need a bit of expertise to run it properly and register the required results. It does exactly what is advertised, more precisely restart USB ports that are misbehaving or registering unknown errors. As unplugging and replugging a USB cable is scary to some of my teachers - is there a command line thing I can run to restart either a specific or all usb ports. RestartUsbPort is nothing more than a simple utility. My smartboards USB connection occasionally doesn't connect to the computer on a restart. ![]()
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