You open your MacBook, press the power button and nothing happens. No Apple logo, no sound, just a black screen. It is easy to assume the worst, but a Mac that seems dead can have a simple cause, such as a drained battery, a faulty charger or a display that is on but dark. A few careful checks can tell you which kind of problem you have, and when to stop trying things at home.
First, decide whether it is really off
A Mac that will not start and a Mac whose screen stays black are two different problems. Look and listen for signs of life: a keyboard backlight, a Caps Lock light that responds when pressed, a fan, a startup sound, or an Apple logo that appears briefly before the screen goes dark.
If you see any of those, the computer has power and the problem may be the display or the startup process instead. Try the brightness keys, and if you have an external monitor and the right adapter, connect it. A picture on the external screen points toward the built-in display rather than the battery.
Check the charger, cable and outlet
Apple's own first step is the power supply. Make sure the cable is undamaged and firmly connected at both ends, and plug the adapter into an outlet you know works rather than a power strip. If you have another compatible USB-C or MagSafe adapter, try it.
A battery that has drained completely may need some time on the charger before the Mac responds, so leave it connected for a while before deciding it is dead. On models with a MagSafe connector, a light on the connector that never comes on can point to the adapter, the cable or the charging port.
- Inspect the cable and connector for fraying, bent pins or debris.
- Try a different wall outlet and, if possible, a known-good adapter.
- Give a fully drained battery time on the charger before testing again.
Unplug accessories and try a forced restart
Disconnect everything except power: hubs, docks, external drives, printers and displays. A faulty accessory can occasionally keep a Mac from starting normally.
Then press and hold the power button, or Touch ID on newer models, for about 10 seconds and release it. Wait a moment and press it once more normally. This forces a Mac that is stuck in an unresponsive state to shut down completely and start again.
Intel MacBook or Apple silicon?
Older MacBooks with Intel processors have a System Management Controller that handles power and charging, and Apple's instructions include resetting it when an Intel Mac will not turn on. Macs with Apple silicon, such as M1, M2, M3 and later chips, do not need an SMC reset, so you can skip that step on newer models.
If you are not sure which you have, the model and year are usually on your receipt, the original box or your Apple Account device list. Following steps meant for a different model wastes time and can make the problem harder to describe later.
If it turns on but will not finish starting up
Sometimes the Mac powers on but stops at the Apple logo, shows a folder with a question mark, a circle with a line through it, or a globe with a warning symbol. Those screens mean the hardware is running but macOS cannot finish loading, which is a startup problem rather than a power problem.
Apple's guidance for these screens includes starting up in macOS Recovery to check the startup disk. Be careful with any option that erases or reinstalls the disk. If the files on that Mac matter to you and you are not certain they are saved elsewhere, stop before erasing anything and get help instead.
Stop troubleshooting when you see these signs
Some symptoms mean that more attempts at home can make things worse. Pressing the power button repeatedly on a wet Mac or charging a swollen battery adds risk without telling you anything new.
- Liquid was spilled on or near the keyboard, even if it seemed to dry out.
- The trackpad is lifting, the case is bulging or the bottom no longer sits flat.
- You notice a burning smell, unusual heat or a damaged, discolored charger.
- The MacBook was dropped and now shows no signs of life at all.
What to tell the technician
A good diagnosis starts with a clear history. Note when the problem began and what happened just before, such as a macOS update, a spill or a drop. Mention which charger you use, any lights or sounds you noticed, and which files on the Mac are most important to you.
At Arbor Computers in Ann Arbor, we repair MacBook Air and MacBook Pro models along with iMac, Mac mini and Mac Studio, from startup problems to battery, charging and storage issues. Walk-ins are welcome with no appointment needed. We find the cause and explain it in plain language first, then you decide how to proceed.
For guidance specific to your systems, explore Mac and MacBook repair .
Further reading from trusted sources
Illustrative photography by Craig Dennis on Pexels . Images do not depict Arbor Computers clients or employees.
