But if the startup process gets stuck, no matter how long you wait, you'll see only a plain gray screen or one with symbols.ĭepending on what you see, follow these instructions. Once you power on your Mac, a sequence of booting events occurs until the login screen or desktop appears.
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See our dedicated guide to get your Mac booting again if you still have trouble. This is the last step you should try before taking your Mac in for a repair. On a desktop Mac, unplug the cable and wait ten seconds. If your Mac is running, it'll cut the power and force it to restart. On a modern MacBook, press the power button and hold it for ten seconds.
Plug in your peripherals after a reboot and see if it all works properly. Unplug all peripherals except your keyboard and mouse, then try to boot. There might be a problem with your accessories. Also, try raising the monitor brightness to make sure that it's not turned down extremely low. Next, check the wires for damage and try a different charger or cable.Ĭheck the video-out cable connection with the external display (if any). Instead of panicking, try these steps one at a time to diagnose the problem:Ĭheck the power connections to make sure they're secure on both ends. There's no power light, no sound, and a completely black screen. You press the power button on your Mac, and nothing happens.
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We'll show you some common warning signs and discuss how to fix these problems. It's up to you to take notice and keep a close watch on the system. Sometimes your Mac will give a warning sign before these become major issues.
They can gradually worsen over time, or occur suddenly. Occasionally, issues crop up in either macOS or your computer components.
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