Detailed information about how to reset System Management Controller on all Mac computers and common issues relating to SMC can be found in this article. After an SMC reset, the USB ports should work correctly. Finally, boot the computer in the usual way by clicking the Power button.Ĥ. When it blinks or changes color, release the key combination.ģ. Next, hold down a combination of the Shift, Control, Option, and Power keys for a few seconds and observe the power adapter light. To reset this controller on MacBook, MacBook Pro, and MacBook Air, begin by shutting down the computer and connecting a power adapter.Ģ.
SMC controls computer power consumption, battery charging and functionality, thermal and fan activity, GPU and video mode functionality/video output, sleep/wake modes and led lightning management, and other hardware functionality.ġ. If you are sure that the devices connected via USB are working correctly, the ports are clean, and the connection is secure, you can reset the System Management Controller (SMC).
Reset SMC to solve randomly-occurring USB port problem Combo Cleaner is owned and operated by Rcs Lt, the parent company of read more.
#Mac pro usb ports stop working full version
You will need to purchase the full version to remove infections and eliminate computer errors. It is recommended to run a free scan with Combo Cleaner - a tool to detect malware and fix computer errors. Additional tips while experiencing USB port issues.Reset SMC to solve randomly occurred USB port problem.Firstly, you can try to reset several built-in controllers with the methods outlined below. Therefore, you might encounter this frustrating situation on any Mac computer (MacBook, MacBook Pro, MacBook Air, iMac, Mac Mini, or Mac Pro).Īlthough this may seem to be a hardware issue, a number of possible solutions are available without replacing the port or performing a fresh installation of Mac OS. This is a common problem and not model-specific. If other separate devices and cables do not work, this indicates a problem with the Mac USB port(s). First, ensure the problem is with the Mac USB ports - the easiest way is to try a few separate devices using the same connections.Īlso, ensure that cables are in good working condition with no damaged, burnt spots. As USB ports are used for many devices, an inactive port can become a significant problem. USB is used extensively, from input devices (keyboard/mouse) to external storage and output devices (printers, speakers/headphones). How to Fix Mac Computer's USB Ports Stopped Working?
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