Apple monitor does not turn on. MacBook does not turn on

Let's not be about the reliability of Apple at the 100th time. Everything breaks.

But this case is strange, almost paranormal - at least he seems like that when it happens to you.

Dano: New MacBook in excellent condition and without repair. Sit, work for him. Suddenly once - he turned off. No warning went out the screen and cut down food.

You are trying to turn it on, but he does not react at all. In no way. Long Pressing the Power button, Connect the charging cable, change the charger. Just zero reaction.

While do not hurry to go to the service. And do not rush at all. Perhaps this problem will be solved right now.

I ran into a sudden shutdown Mac 2 times in 1 week

I believe in chance, so I think that I was only "lucky." But at this place can be any of you.

A week ago, my colleague experienced the above problem on his MacBook Pro. The computer simply turned off in an even place and no longer filed any signs of life. I tried different charging, cables, open-close the lid. Useless.

A few days later, the situation was repeated already with me and a 12-inch MacBook. Other circumstances only.

I did not have a sudden trip. MacBook remained 2% of charge when he went out. Nothing bad thought, removed him in a bag and forgot. In the evening I put it on charging.

I open in the morning, I try to turn on - zero reaction.

The laptop just seemed completely dead. This is a strange feeling - just that was a computer, and now a piece of metal with buttons. And it seems you are not to blame.

If you have something like this, do not despair: most likely, the case is in the SMC controller fail.

What is an SMC controller, why is it needed?

Literally, SMC is decrypted as System Management Controller, that is, the system control controller.

This chip on the motherboard, which solves several specific tasks. Quoting the official website of Apple, SMC is responsible for:

reaction to Pressing Power Button

reaction to the opening and closing of the display cover on Mac laptops

accumulator resource management

temperature control

summer Sensor Sensor (SMS)

operation of the external light sensor

backlight keyboard

status indicator management

battery status indicators

selecting external (instead of internal) video source for individual imac displays.

SMC controllers stand on all MacBook with Intel processors. In ideal conditions of operation, they function without problems.

But some SMC can start shy away. The reason does not guess and not digitize at home. These may be problems after unsuccessful updating or restoring a system from a backup, or voltage jumps in the power grid when recharging the battery. Or something else.

If the cause of the SMC controller failure is extremely difficult, then the problems you will notice almost immediately.

We turn to the official Apple site behind the list of situations requiring the SMC controller settings:

Computer fans rotate at high speed, although the computer is not much loaded and ventilated properly.

The keyboard lighting works incorrectly.

The status indicator (if available) is not correct.

Battery Indicators (if available) work incorrectly on Mac laptops with a non-removable battery.

The display illumination incorrectly responds to changes in external light.

The MAC computer does not respond to pressing the power button.

Mac laptop incorrectly reacts to closing or opening the lid.

The MAC computer suddenly goes into sleep mode or turns off, after which it cannot be turned on.

The battery does not charge properly.

The MacBook or MacBook Pro computer does not charge via the built-in USB-C port.

MacBook or MacBook Pro computer does not recognize external devices connected to its built-in USB-C port.

The MAGSAFE power adapter LED indicator incorrectly displays the current charge state.

Mac computer works unusually slowly, despite the absence of an excessive intensive loading of the CPU.

The MAC computer with the support of the external display mode does not switch to the external display mode or inversely expectedly shields unexpectedly.

The backlight around the I / O ports on the Mac Pro computer (end 2013) is not activated when the computer is moving.

Ok, yes? Reading this list entirely causes a desire to immediately reset the SMC settings on your poppy, no matter how it works. Suddenly it will be better.

Fortunately, the SMC reset procedure is safe, does not lead to negative consequences and is often used in Apple's service centers as the first step of eliminating owner complaints. No data or settings will disappear. All files will be in place.

As you already guess, it was the SMC reset that helped me and a colleague to revive our MacBook. Only the procedure was not as simple as it was described on the Apple website.

How to reset SMC on my poppy?

If you have a Macbuck with a worn battery: Turn off your MacBook (if enabled), clamp the CMD (COMMAND) + OPTION (ALT) + SHIFT key on the left side of the keyboard keyboard, and the second hand is the power button. Keep all this by pressing 10 seconds, then release. Turn on Mac as usual.

If your MacBook has a removable battery: Roll it up, it's time to upgrade. Well, seriously, it is necessary to turn off the beech, get a battery from it, clamp the power button for five seconds, then release, insert the battery pack back and turn on the laptop is normal.

If you have a desktop Mac, IMAC and Mac Mini: Turn it off, take out the power cord, wait for 15 seconds. Insert the cable back. Look for another 5 seconds, turn on as usual.

If you have iMac Pro: Turn off, clamp the power button for 8 seconds, release it for 2 seconds and then just click.

Mac computers do not report that SMC settings were really reset. If your problem did not dare, although it is mentioned in the reasons to make a reset, try again. Once again.

Features, try ten times. Because for some unknown reason, it is very rare from the first time.

Personally I brought success about the sixth attempt. Mac suddenly turned on, began to charge and actually behave, as if nothing terrible had happened.

And if the SMC reset does not help, and Mac does not turn on anyway?

I strongly recommend trying to reset SMC at least five times. This observation is confirmed by numerous themes in Western forums. For some reason, the "window" of the key combination is very small in the new MacBook models.

Unfortunately, any computer user may encounter a problem when operating system Mac does not boot And as if freezes on the download process. It looks like this, as a rule, so: the computer starts uploaded, the Apple logo appears on the screen, but then nothing happens - the system is not loaded, and the computer does not respond to that, except for forced switching off the power button, does not respond. In other cases, a load indicator may appear under the "apple" logo (in the same way as it is shown in the image above), but it also does not happen. Why does it happen and how can I fight with it? Is it necessary in such cases? Tell in order.

Why mac does not load and hangs on an apple logo

The reasons for mac stopped loading may be different:

The operating system failure associated with damage to important system files (for example, in case of not the correct installation of the system components update, or install the new OS).
Damage to system files due to malware action.
Lack of free space on the boot volume of the computer.
The inability to determine the boot volume due to the program error or damage the hard disk plume (a clear symptom of this -).
Malfunction of hardware components (damage to the hard disk or SSD, a video chip defect, etc.).

Mac does not boot and freezes. What to do?

Depending on the causes of the problem, there are different variations of its solution. Some can be tried independently, others will be able to implement only a specialist in the service center. Below will give several recommendations that you can do if Mac stopped loading and hangs on the Apple logo or the download indicator. Let's start with a simple.

Loading in safe mode

Few know that the MacOS operating system allows you to boot in safe mode (SAFE MODE), which allows you to identify various system errors. In Safe Mode mode, only the system kernels with basic important functions is loaded, while the file system is checked during the computer, the file system is checked in safe mode for errors and, if possible, eliminate them. Therefore, in most light cases, Mac downloads in safe mode with a subsequent correct software reboot can solve the problem if your Mac does not boot and freezes.

In order to download Mac (it does not matter whether MacBook, IMAC or Mac mini) in safe mode, you need when you turn on the computer, clamp the "SHIFT" key On the keyboard and hold until the download indicator strips appear. Note that the MacOS download time in safe mode takes much longer than the standard loading of the operating system, so we recommend to gain patience.

Fixing errors using disk utility

The disk utility is a specialized application for working with the boot volume and the MacOS file system, which allows, in addition to standard formatting functions or breakdowns to partitions, check the disk and boot partition for errors and the correctness of access rights to system files.

To start the disk utility if the computer is not loaded in normal mode, you need to boot from the built-in MacOS recovery section. For this you need when you turn on the computer, press the ALT / OPTION button (⌥) and hold it until the download selection screen appears, then select the recovery section (Recovery). Forced download from the MACOS recovery section can be carried out when you press the keyboard shortcut Command (⌘) -R When running a computer.

When the recovery section is running, you must select the "Disk Utility" item:

In the disk utility, select the "First Aid" section and click "Run" (relevant for MacOS versions of EL Capitan and Sierra), or manually select "Check Disc" and "Check Access Rights" (Available for OS X Yosemite and Older). If, at the end of the process, the disk utility will report that the disk is working or restored, then try to restart the computer and check the operating system booting again. If you successfully correct the MacOS errors found should be loaded correctly in normal mode.

If, during the verification process, the disk utility issues error message, fix that cannot be thought about how to save important files and documents, and then reinstall the operating system.

Reinstalling the MacOS operating system

If the Mac does not load and hangs on the download indicator, and the recovery of the results does not give the result, then most likely, without reinstalling the operating system, it is hardly possible to do. At the same time, given the fact that the computer is not loaded, to extract files and user documents can be very problematic.

In order to extract files from a boot volume that cannot be started, you will need to either connect the computer to another Mac in an external disk mode (the method is not very simple and requires the presence of a second Mac computer, FireWire cable or Thunderbolth, as well as strict Mac OS versions On both computers), or connect to a computer from an external medium with an installed operating system or special software for extracting and transferring data.

Unfortunately, neither each MAC user has the opportunity to carry out similar manipulations and, facing the situation when their computer stops correctly loaded and freezes, and simple ways to solve the problem do not help, simply do not know what to do. If your MacBook Pro, MacBook AIR or IMAC is not loaded or the operating system freezes when loading, you can always seek help from our service center specialists. It will be performed as quickly as possible with all your wishes about saving important data and the desired settings that our employees will make for your computer so that he will please his stable work for a very long time.

If your MacBook hangs on an apple, correct quickly - from 30 minutes. Contact!

Tags:,

Perhaps you will be interested:

11 comments to the article "What to do if Mac does not boot and freezes on the Apple logo"

I just have such a problem - Mac is not loaded and freezes on the Apple logo
Hanging for a long time on the apple, then a chamomile appears, it begins to spin and so indefinitely.
I have important data there and I am afraid to lose them. Can you restore me and the data and the performance of my MacBook?

Alexander Hello!
Sometimes, such problems are associated with the physical dying of the hard disk on your MacBook. Unfortunately, hard drives on McBooks fail and not so rarely, as I would like. If you have such a situation, then we will need to separately remove those data that can be saved. After that buy a new hard disk, install it, and return all the saved data back, after setting the system.
The cost of such a service is consistent with the client, after careful diagnostics for damage to the hard disk.

Many of you have probably heard that the Apple operating system is famous for its reliability and low number of errors and failures occurring. However, Mac OS, unfortunately, is not ideal and one day can neither with this just take and not boot.

Without a doubt, this behavior of your poppy can be caused by a number of different errors, which need to be different, but the author of this article is in recent times increasingly facing the situation when MacBook is not loaded after the next operating system update (Mac OS Sierra in this particular case) and makes three loud pisctionsrepeated with certain frequency.

Unfortunately, this can happen with each of us, and to contact the service center often happens and, of course, notice. Fortunately, there is an easy way to try before carrying your poppy somewhere. Judging by the reviews in foreign forums, it has helped to save funds to address the service, more than once helped such a "hint" and the author of this article. About him and will be speech. So what to do if you do not turn on MacBook?

Manifestation of errors when loading Mac

As mentioned above, a similarly computer can behave due to a number of different errors (at least 4, judging by the help on Apple's website).

However, in our case, the sequence of actions and the symptoms of the patient look like this:

you have installed the update of the Mac OS operating system (or the computer installed it itself, if you are included auto update);
when you turn on (reboot) your MacBook instead of the expected loading strips of the operating system, you saw only black (well, a slightly gray, the side lighting of the monitor still turns on) the screen;
looking at this "light-black" screen you heard three long sounds like "Bip-Bip-Bip", repeated with a frequency of 5 seconds.

Carefully examining Apple's official website. We find symptoms and a description of our error:

"Three consecutive signals that are repeated with a five-second pause: RAM has not passed the data integrity check."

Okay, is understandable, this is the RAM error of our MacBook. But at least some way to solve the official somehow forgotten. But we found it, and it turned out it is simpler. Of course, it is not a fact that this method will help you 100%, but it is worth trying, because Many are works.

By the way, judging by the discussions in foreign forums, the following McBook models most often give out such an error and do not turn on: MacBook Air A1466, MacBook Pro A1278 and A1260. It is from the first we write this article.

Solving the problem - Reset SMC parameters

So if your MacBook Air, MacBook Pro, IMAC, Mac Mini or Mac Pro does not turn on and beeps - This signals an error associated with the RAM (RAM), which most often can be solved by resetting the system controller parameters (SMC).

Depending on what your device has, follow the algorithms below.

If you have a MacBook with a worn battery

And such are most of modern models, the following algorithm for you is as follows:

If you have MacBook with a removable battery

Although such, in my opinion, have not been issued for a long time, but just in case - we act as follows:

If you have iMac, Mac Mini or Mac Pro

That is, one of the stationary computers from Apple, then reset the system controller parameters (SMC) is even easier:

Using suitable for your poppy "But the way you will most likely see the usual Mac OS download window - this means that the problem is solved.

What does the SMC settings affect the reset

If you are not very well versed in computers or simply encounter such a procedure for the first time, before you have done the actions described above, it may arise a completely reasonable question: "Will I lose important data or settings on your MacBook as a result of a reset, because This procedure is partly similar to "Hard Reset" On some gadgets? ".

We hurry to calm you - no, you will not lose anything important. If you are really wondering, take a look at the list of functions for which the system controller is responsible (SMC), whose parameters we drop:

reaction to pressing the power button;
reaction to opening and closing the display cover on Mac laptops;
battery resource management;
temperature control;
summer Sensor;
external light sensor;
keyboard backlight;
status indicator management;
battery status indicators;
selecting external (instead of internal) video source for individual imac displays.

Alternative option - rearrange the RAM

If the option proposed above did not help and your MacBook is still not started, then you should try an alternative way. However, it is not suitable for any Mac computer, but only for those whose operational memory can be replaced, and not planning on the motherboard (as is done in most modern Mac models).

If you have one of these computers, then this option can help you, you just have to know how to get to the RAM slot. The algorithm of action is very simple:

That's all. Now you know what you can try to make first if your Mac does not start and beeps by the opposite signal. We hope that one of the proposed options will help you solve this problem and save a significant amount of money on accessing the service center.

What to do if suddenly laptop screen MacBook Air, Pro? Of course, in this case it will continue to work it will be impossible. First, we advise you to connect the laptop to the monitor and check if the image appeared on the external monitor. If it appeared, then the problem is in your laptop, or rather - either in the plume or in the matrix itself. If he does not show, as a rule, the problem is hiding in the gland. Consider possible options in more detail.

First, check if problems do not appear when opening or closing the Lappleop cover. Often in the closed state McBuck is simply turned off or goes into sleep mode. When opening the screen turns on again. As a rule, the reason lies in the most mechanical switching button, which is most of all suffer and comes in disrepair through the dirt entering. In this case, she just sticks out. Users can simply pour it with liquid, as a result of which it can just close. The button is located in the most prominent place. As a rule, in the upper right corner, on the panel, where the display, or in the end. When malfunction, the power button must be replaced. Such a simple task takes quite a bit of time.
If the monitor shows, but there is no backlight, mainly says that the inverter is damaged or the illumination lamp itself. These components are responsible for the display backlight. If the inverter is not badly damaged, it can be repaired, otherwise - it is changed to a new one. The lighting lamp is not subject to repair, only its complete replacement will help.
If the matrix is \u200b\u200bblack, while on the sides there is a backlight or not, then the problem is the very hardware.

Consider in more detail possible options:

When the MacBook Air, Pro laptop display does not turn on

If the laptop is loaded, McBook and hangs everything.

First of all, it is through a hard disk problem.
It is possible that an error occurred on the hard disk.

A portable computer may also hang after obtaining mechanical damage or as a result of moisture inward.

The specialists of our service center of Telemama are always ready to stretch the hand of help. We will welcome MacBook Air, MacBook Pro.

Catch the moment: until the end of the action remains 2 weeks! Seasonal discount 40-70%
the name of detail	The cost of components in rubles.	Cost of installation (repair) in rubles.	Order service
Warranty 1 year	Call or click the average price of the matrix 4500 3950 rubles.	900
	2900	900
	1500	900
	1900	900
	900	900
	1100	900
Battery replacement	1800	900
	from 900 (on your choice and depending on performance)	900
		1990
Replacing the southern bridge	from 800-2900 (depending on the model of the laptop)	1990
	from 900-2900 (depending on the laptop model)	1990
	900	900
	900	900
	1100	900

Apple computers are characterized by high reliability, but their owners sometimes face trouble. We'll figure it out what you need to do in the case when McBook does not turn on. If you did not manage to pour your laptop and did not drop it on the floor, the problem most likely can be solved without a hike to the service center.

To get started, perform an external check to make sure that the monitor and the power adapter are correct. The first is more relate to the owners of Mac Mini and the monoblocks of IMAC. Portable computers, released until 2016, are used to charge the magnet port MAGSAFE. The power cord is equipped with a light indicator.

With proper connection, it should be lit orange or green. L-shaped magnetic latch can work even in the case when the contacts did not have time to connect. In this case, the power cord is externally connected, but due to a small skew, the power is not served. T-shaped latches of the last generation of such a shortage do not have. Make sure the MAGSAFE is connected correctly.

In all 12-inch models, and after 2016 - and in MacBook Pro, use the power supply with a USB-C connector that does not have a light indication. Magsafe remained only in AIR. The cord of new adapters has on the ends two identical connector and connects to a laptop and power supply through the port.

Disconnect it on both sides and connect again. The adapter can automatically interrupt the power supply during interference in the power grid. To reset the worked protection, pull it out of the outlet for one minute. After re-enabled, the computer must start charging in normal mode.

Reset NVRAM / PRAM

When the adapter is working, the power is served and an apple is lit on the lid, but the screen is still black, then you will need to reset the NVRAM / PRAM memory.

Fully turn off the computer by using the power button. Include it and immediately press the combination shown in the screenshot.

Hold all the keys until the laptop starts running, making the boot beep again. After the inclusion passed normally and we are logged in, you need to check the updates. Press the menu bar to the apple logo located in the left corner. Select the marked point.

On the main page, click the specified button to open the App Store store.

The automatic system will check the availability of updates. We install all available and if necessary, update OS to the latest version of High Sierra.

SMC Controller Reset

The SMC controller is responsible for the power supply features. These include the control of the battery, the reaction to the closing and opening of the cover, the operation of some system sensors and interaction with peripheral devices. In any case, if it seems to you that Mac works incorrectly, the forced restart of the controller can relieve problems.

For Haymak monoblocks and all MINI versions, it is enough to disable the power cord for 15 seconds. Before re-enabling, it is required to wait at least five seconds. For laptop computers, which include all versions of "Air", "Pro" and 12 inch Retina, carry out the following steps.

Fully turn off the device using the menu item shown.

Turn off the power cord. Press the three keys in the left corner indicated on the screenshot simultaneously with the power button and hold for ten seconds. Connect the power adapter and turn on the laptop.

As in the previous case, check and install the available OS updates.

Consequences Upgrade

Apple in the models of recent years have made an upgrade almost impossible. In the previously manufactured MacBook, the user could independently replace the memory bar. The operation in principle is simple, but requires the correct selection of modules. If after the upgrade in the process of inclusion, the laptop begins to sing, this indicates problems with new memory.

Signals in this case are fed with a pause of five seconds. Depending on the model, this may be one repeating beep or a series of three consecutive. The only way out of this situation is the return setting of old modules or purchase suitable.

Finally

If the NVRAM memory reset and the SMC controller does not help you, then your Mac has serious problems. The best solution will be the appeal to the certified service for professional diagnostics. Do not forget that during the year from the moment of activation on MacBook there is a limited guarantee of Apple and some types of repair can be performed free of charge.