Turn it on, and after the loading chime, hold down the Option, Command, P, and R keys together.ģ. The memory area stores speaker volume, screen resolution, startup disk selection, and any recent kernel panic reports.ġ. NVRAM (non-volatile random-access memory) is a small area of Mac memory that stores certain settings in a location accessible by the macOS. Release the button, reattach the power cable, and boot the Mac in the usual way.įor more information and detailed instructions, read this guide. Hold down the Mac Power button for 5 seconds.Ĥ. To reset SMC on a non-portable device, follow these instructions:ģ.

After a successful reset, reboot the computer in the usual way. Finally, release all keys simultaneously - the light on the MagSafe adapter might change color to signify that SMC has been reset.Ĥ. Hold down the Shift, Control, and Option keys while clicking the Power button.ģ. First, shut down the device and connect the power adapter to the Mac.Ģ. Reset SMC of a MacBook Air, MacBook Pro Retina, or MacBook Pro with an integrated batteryġ. Resetting the SMC might solve issues related to these devices. It controls computer power consumption, battery charging and functionality, thermal and fan activity, GPU and video mode functionality/video output, sleep/wake modes, led lightning management and other hardware functionality. System Management Controller (SMC) is a low-level Mac hardware component. Combo Cleaner is owned and operated by Rcs Lt, the parent company of read more. 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. Video showing How to Fix Mac Stuck While Shutting Down or Restarting? Follow this guide to resolve Mac restart and shut down issues. The first step when troubleshooting these issues is to force the Mac to shut down and reset System Management Controller (SMC) and Non-Volatile Random-Access Memory (NVRAM). Windows users who have recently switched to a Mac computer will probably not be too surprised since this is a common issue on Windows platforms.įortunately, Macs have built-in tools to solve these problems. Unfortunately, many people encounter these problems, which commonly arise following an operating system update.

Or perhaps the MacBook freezes on a black screen, but you can still hear sounds from the device (HDD, etc.) Furthermore, you might attempt to unplug the power adapter and remove the battery but still notice that the computer has not completely shut down. You might finish work on your Mac and attempt to shut it down, only to find it stuck on a desktop picture without any icons. Mac or MacBook Stuck When Shutting Down or Restarting? How to Fix?

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