As is normal and logical every time we want to turn on the Mac simply by pressing one-time power button, the computer should start with the classic morning screen and its characteristic sound inseparable until the user selection screen with OS X already loaded, but what if this does not happen, nor is any activity seen or heard?
When this happens to you there are several things to check before resorting quickly and as a first option to the technical service or authorized SAT. Logic tells us that the first thing we should do is start with the basics to go ascending.
For this same reason we will make sure that the power supply where the Mac is connected is supplying the adequate current to the equipment or if we have a UPS or auxiliary battery, that it is correctly operational, for this it is enough to connect a lamp or any other device or simply change the plug to see if that works ... it is rare that it is the reason but sometimes it works (I say it from experience).
If our equipment is a MacBook, the first thing to try is to leave it plugged in for about 10 minutes because maybes the battery is completely drained and until it has a minimum load it does not start.
Finally the final test if nothing of the above has worked is rset the system power controller or SMC, which if you are having problems can lead to the Mac not starting:
- MacBook models (without removable battery): With the MagSafe cable connected and the equipment turned off, we will hold down the Shift + Ctrl + Alt + Power Button keys, at the moment we will release all of them and press Power again.
- MacBook models (with removable battery): Turn off the equipment and unplug the MagSafe, then remove the battery and hold down the Power button for at least 5 seconds and put the battery back. With this, the process will have been completed.
- Mac Desktop Models: Shut down your Mac and unplug the power cord for at least 15 seconds, then plug the cord back in and wait 5 more seconds to turn the computer back on.
More information - Warranty coverage for a MacBook in technical service
I have a 15 inch mac pro. The problem I have is that the screen goes black and the pushbutton moves… when I turn it on, the little apple appears, but then the screen goes black…. I have already tried connecting it from another source and have pressed the keys indicated. But, the mac is still in the same situation. What I can do?
Hello, how are you? I have a macbook pro I want to know if it can be turned on without battery
My mac removed the battery since it was damaged I wanted to turn it on with a charger and it did not turn on the next thing that was to connect the charger and press power, unplug while pressing the button, return to the charger and count to 6 and turn on this is normal that is my question
Thanks to you, I managed to turn on my computer !! thank you very much!!!
Spectacular!!! I was so excited when it turned on. I have a 13 ″ retina and my battery is screwing up but I didn't even want to turn it on, now I made the first tip for those who don't have a removable battery and it turned on! The problem is that I feel like it is being forced because the vents or whatever it is inside are heard full .. Anyway! Thanks thanks
Hello, I have a macbook and literally the battery does not work, how do I turn it on, of course being plugged in.? thanks greetings
I have the same problem macbook pro 5.5 mid-2009, it ran out of battery and no more charge, without battery it does not turn on what can I do, I can not use it while I buy another?
good how are you, I have a 17 mac, the battery is dead, how do I turn it on? Since the charger is orange and black screen, it does not come out of that. reset with shift + option + ctrl and power and nothing
Good morning my imac does not have a battery to extract the day yesterday I turned it off normal as is the procedure and today I wanted to turn it on and it does nothing I do not hear it turn on much less turn on the screen nothing works I can do
Hello I have a MacBook Air 15 »and it does not want to turn on. It charges, because the green light is on, but it does nothing when I turn on the power. Dead. I have tried all the keyboard tricks but nothing. It makes no sound, nor does it attempt to turn on Any ideas? I am in a remote place with no technical service.
Thank you
Thanks I came back to life with the reset turned on!
Good morning. I have an imac A1311 they gave it to me. What I want to know is that it is missing the hard disk. It can turn on without it or it has to have the disk to turn on. Thank you for your support.
Hello! It does NOT turn on. It's not that it burned with problems, no
is that it does not pass current.
I have a mac air 13 ″ 2015, but it does not turn on and when I connect it it does not turn on the charge light. Can you help me
Hello good day, I have a Macbook White 2010 A1342, the problem is that sometimes it turns on and in others I have to try several times forcing the shutdown and trying several times until it starts any solution that you can suggest?
yes it worked, thanks