Only we humans are immune to problems, not our Macs, they aren't immune to problems. Sometimes your Mac may not respond to the Power button at all, or your device's macOS might have crashed or fail to start up properly.
Here are some hacks on what to do if your Mac won’t turn on.
The very first step is that we will assume your Mac doesn't respond when you try to ON it is using the power button. If your device responds to the power button but fails to boot up normally, directly scroll down to the Recovery Mode part in the blog.
1. Make sure your device has power
2. Check the Hardware and Connections Thoroughly
3. Try performing a power cycle
4. Reset the System Management Controller Firmware
5. Try Using the Disk Utility from Recovery Mode
6. Warranty Check
#1 Make sure your device has power
First, ensure your Mac is plugged into a good power source. Try swapping out the power cable or charger or using a different power outlet. Sometimes, the charger itself might be damaged. Or, if you are using a MacBook and its battery is fully dead, you may want to wait a few moments after plugging it in before turning it on. It won’t necessarily boot instantly at that moment after you plug it in.
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#2 Check the Hardware and Connections Thoroughly
If you are using a Mac desktop, make sure that all its cable connections are correctly seated. For instance, if you are using a Mac Mini, just make sure that the video out cable is connected firmly and securely to both the Mac Mini itself and the display. Try re-fixing all the cables, i.e. unplug them all and then just plugin one by one. Just to ensure that they are securely connected.
If you have recently started up your Mac and fiddled with its hardware, that could have also created the problem. For example, if you swapped out a hard drive or installed RAM, and you may want to attempt swapping back in the old hardware or just make sure those components are securely and firmly connected in your Mac.
If all these kinds of stuff don’t work, try to unplug all unnecessary peripherals before you start to boot your Mac.
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#3 Try Performing a Power-Cycle
Another extreme condition would be that your Mac might be stuck in a frozen state and it will not be responding to presses on power buttons, you can fix your Mac by cutting the power to it and forcing it to restart.
On the latest version of iMac with an inbuilt battery, you can press the Power button and hold it down for ten seconds. If your iMac is running, this action will forcibly cut down the power to it and force it to restart.
On a Mac with a removable battery, first, shut it down, then unplug it, now, remove the battery and wait for 10 to 20 seconds, and then reinsert it.
If you are using a Mac desktop i.e, iMac or Apple Mac Mini or Mac Pro versions, just unplug the power cable, leave it unplugged for 10 to 20 seconds, and then plug it back in.
#4 Reset the System Management Controller Firmware
In some critical cases, you might need to reset the system management controller firmware on your Mac Pro. This must be the last thing you should be trying if your Mac doesn't respond to the power button presses at all.
The latest versions of MacBooks with inbuilt battery, plug in the power cable. Press the Shift+Control+Option keys at the left side of the keyboard and the Power button and hold them all down. Now, release all four buttons at the same time and then immediately press the Power button to turn the Mac on.
For the MacBooks with removable battery versions, just unplug the Mac from its power source and then remove the battery. Now, Press the Power button and hold it down for 5 to 10 seconds and release the Power button. Now, reinsert the battery and plug in the Mac and press the Power button to turn it back on.
For Mac desktops, first, unplug Mac’s power supply cord and leave it unplugged for 15 seconds. Now, plug it back in, wait 5 more seconds and then press the Power button to turn the Mac back on.
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#5 Try Using The Disk Utility From Recovery Mode
If your Mac is actually booting up but Mac OS isn’t loading correctly, maybe there is a software problem. It is because your Mac’s disks may be contaminated and you can absolutely fix this from recovery mode.
To easily access the recovery mode, boot your Mac up. Now, Press and hold the Command + R keys together during the boot-up process. You should press these keys immediately after you hear the chime sound. Later, your Mac should boot to recovery mode.
If it did not work, you probably didn’t press the keys soon enough, try to restart your Mac and try again.
- Click the “Disk Utility” option on Mac
- Click over to the First Aid tab
- Now Try repairing your Mac’s disk.
The Disk Utility executes a file system check operation, so you don’t need to run the file system check command manually.
#6 Warranty Check
If your device is under warranty, you should contact Apple or take it to a nearby Apple Store to have them fix the problem for you. If you don't have a warranty do not worry our Apple-certified technicians are here at Repair My Phone Today to fix your MacBook and make them work.