

Press and hold the power button for 10 seconds and see if your Mac starts up.For MacBooks, verify that you are using the correct power adapter with your laptop–check the information guide that came with your MacBook.If available, try another power cable/adapter and see if the cable is the problem.

Buy mac os high sierra oem how to#
Buy mac os high sierra oem update#
If your MacBook or other Mac does not start up at all after macOS High Sierra/Sierra update and hangs on a gray screen with an Apple Logo, here are some steps to consider: Related Articles The majority of these problems are usually related to third-party software running on your MacBook.

At AppleToolbox have seen these issues with almost every major macOS or OS X release. Some users report that their MacBooks and other Macs will not start after macOS update to macOS Mojave, High Sierra, or older macOS Sierra. Is your Mac not booting up after the latest macOS update? Or seeing a white, gray, or other Mac screen of death? If so, don’t panic! You’re not alone.
