![]() This will power on your Mac and shut it back off. Step 1: Hold the power button for 10 seconds and release it. So if you have one of those models, shut down your Mac and follow the steps listed in the sections below to reset its SMC. ![]() MacBook Airs and MacBook Pros launched in 2018 or later carry the Apple T2 Security Chip. There are two ways to reset the SMC, and the method you use depends on whether or not your Mac has the Apple T2 Security Chip. If a black screen is all you see when you fire up your Mac, resetting the System Management Controller could resolve the issue. It’s also responsible for supplying power to USB ports and charging your PC’s battery. Apart from the lid opening or closing action trigger, SMC also controls your Mac’s fan, battery, and keyboard backlight. When you click your Mac’s power button or open the lid, it’s the System Management Controller (SMC) that powers the action that ensues. Step 4: Release the keys when the Apple logo appears on the screen. Step 3: Hold the four (4) buttons for about 15 seconds until your Mac restarts. Step 2: Press the power button and immediately hold Option + Command + P + R on your keyboard. To fix this, reset the non-volatile random-access memory (NVRAM) or parameter random-access memory (PRAM) to factory default. If your Mac cannot detect, identify, or remember the primary startup disk, it might encounter difficulties booting up normally. Step 2: Uncheck ‘Automatic graphics switching.’Ĭan’t find the automatic graphics switching option on the Energy Saver menu, this means your Mac has just one dedicated graphics hardware. Step 1: Launch System Preferences and select Energy Saver. To prevent this from happening in the future, disable automatic graphics switching. Graphics switching comes with its benefit (e.g., improved battery life), but it could be responsible for the Mac booting with black screen issue. You’ll find this feature mostly on MacBook Pros with two graphics cards. Disable Automatic Graphics SwitchingĪutomatic graphics switching is a macOS feature that optimizes the graphics-related performance of apps installed on your MacBook. If the issue persists after closing and reopening your MacBook’s lid, enter your password and hit the Return key.Īlternatively, if your Mac has Touch ID, place your finger on the fingerprint sensor and wait for the black screen to vanish. Some users discovered that ignoring the black screen and typing their Mac’s security credentials fixes the startup black screen issue. If your MacBook isn’t booting past a black screen, close the lid, wait for about a minute or two and reopen the lid. This may look pretty basic, but it works.
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