Macbook air does not turn on using the button. MacBook won't turn on: possible reasons and solutions to the problem. What you can try and earn on your own
If you read this article, then you clearly have problems with Apple brand technology. Don’t get embarrassed, it’s possible that the problem is not that serious and you can solve it on your own, without going to the extent of getting help from the fakers. We are often confronted with such problems as problems with the MacBook. It would seem that perfect technology would be ideal - what problems could there be? Unfortunately, the manufacturer cannot provide a full-time guarantee, and the reliability of Apple laptops is highly dependent on serious damage. Today we’ll talk about how to identify the cause of problems in your MacBook on your own and when you can turn to the fakers.
MacBook won't turn on - what to do?
First, don’t panic about your drive and run to the service, give your device “first computer help.” The algorithms described below will help determine the cause and, possibly, find a solution.
Problems with charging
First of all, make sure that you plug the charger into the socket, otherwise it may fail and the charging process will not fail. If the socket is working properly, look at the cord and adapter; the computer may be damaged due to its malfunction.
Maybe a faulty display? 
To remove the voltage from this food, we need to step in the following steps:
- Turn on and listen: there is a distinct melody of inspiration or the noise of the fans and disks - the screen is faulty;
- Activate the Caps Lock key - as soon as the light indicator turns on, then again there is a problem with the screen.
It's not a display
Take a deep breath and calmly remove the power cord from all sockets connected to printers, scanners and other devices. Then we calm down and calm the nervous system with a stretch of medicine - everything is not so scary, right? Next, connect charging. Included. Pishov process? Chuckle and with a hint of pride you can turn to the same printer again. As if nothing happened. That's how it goes.
Reset the system control controller
Another step is the removal of the controller to control the system (besides, the removal of this controller has a positive impact on the operation of the fan, which will no longer operate quietly). This is necessary for the same reason, because if the settings are not correct, the MacBook cannot recognize its battery. For whom:
- We connect the MagSafe or USB-C living unit to the living device and to the computer.
- Press the Shift-Control-Option (left) keys and the Live button on the new keyboard at the same time.
- The keys and storage buttons are immediately released.
- Press the power button to turn off the computer.
Pratsyuє?
MacBook flooded with wilderness
The help device looks like it's going to work: just quickly unplug the power cord, pull out the battery, turn the device over and let it sit for three days until it dries up completely. Then you can’t bring it into the service, or you can turn it on, counting on your luck. Remember: the amount of spilled water on a Mac means the scale of the legacy - pure warm water is not as bad as Pepsi with ice, spilled on a non-flammable hard drive.
The device constantly vibrates when in use
This problem is definitely problematic for those who like to sit at work in a smoky business or in the company of a smoky cat. Brud, who wastes it on the cooler, consumes his robot and literally condemns this part and the computer as a whole to a complete and painful death.
MacBook is working really hard
In such a situation, we immediately urge you to create a selection in your device! A demanding desktop, a bunch of unnecessary, or “cool” add-ons, constant software updates - everything will bore your machine and protest against such a setup! Reinstall the system and organize your files, and your Mac will happily start up with new vigor. Didn't help? Now your MacBook will be running with a new SSD drive and a large amount of RAM.
Your strength has been exhausted...
If the above descriptions did not give a positive result, or other problems have arisen, we strongly recommend that you seek qualified assistance.
Reminder for MacBook koristuvachIn order to avoid having to immediately contact the police for technical assistance, remember and follow the simple rules for using the device:
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Fair, not overprotected or undervalued. There are prices on the Service website. Obov'yazkovo! without “stars”, intelligently and reportably, where it is technically possible - as accurate as possible, pidbags.
If spare parts are available, up to 85% of folding repairs can be completed in 1-2 days. Modular repairs require less than an hour. The website shows the approximate cost of any repairs.
Guarantee and reliability
A guarantee is provided for any repairs. Everything is described on the website and in the documents. The guarantee is valid to the best of our ability and is up to you. A guarantee of 3-6 months is good and will last. It is required to check the frame and any defects that cannot be immediately detected. Use honest and real terms (not 3 terms), you can sing to help you.
Half the success in Apple repair is the availability and reliability of spare parts, so good service is provided directly to customers, firstly there are a number of reliable channels and your own warehouse with verified spare parts for current models, so that you don’t have to waste hiy hour.
Cost-free diagnostics
This is very important and has already become a rule of good manners for the service center. Diagnostics is the most difficult and important part of the repair, but you don’t have to pay a penny for it, even if you don’t repair the devices behind your bags.
Repair in service and delivery
Good service values your hour and offers cost-free delivery. And for this reason, repairs are completed only in the workshop of the service center: correctly and according to the technology, it is possible to carry out the work in a prepared place.
manual schedule
If the Service performs for you, and not for itself, then it will be recognized forever! absolutely. The schedule must be manual in order to fit in before and after work. Good service is provided both during the weekend and during the holy day. We check in with you and work on your devices every day: 9:00 - 21:00
The reputation of professionals is based on several points
Century and information about the company
We have known reliable and reliable service for a long time.
Since a company in the market has already had a lot of successes, and has managed to establish itself as an expert, people are following it, writing about it, and recommending it. We know what we are talking about, since 98% of the participants in the installations in the SC will be restored.
Other service centers trust us and pass on their work to us.
How many masters give directions
If you are always being checked by a number of skin engineers, you can chant:
1. There will be no drawing (or it will be minimal) - on your device you can do it right away.
2. You submit your Macbook for repair to an expert in the field of Mac repairs. Vin knows all the secrets of these devices
Technical literacy
Whenever you ask for food, the faciliator is responsible for this information as accurately as possible.
So that you show what you yourself need.
Try to solve the problem. In most cases, following the description, you can understand what was wrong and how to fix the problem.
It’s a pity that anyone who uses a computer may encounter a problem if the operating system Mac is not interested And it seems to get stuck in the process of attraction. As a rule, it looks like this: the computer begins to be enchanted, the Apple logo appears on the screen, and then nothing appears - the system is not enchanted, and the computer does not respond to anything other than turning off the Primus with the food button . In other cases, an attraction indicator may appear under the “apple” logo (similar to the one shown in the picture), but then nothing will appear. Why is there such a concern and how can we fight against it? What is needed in such episodes? Let's sort it out in order.
Why Mac doesn't get hooked and gets stuck on the Apple logo
The reasons why Mac is no longer attractive may be different:
- Cleaning up the operating system due to corruption of important system files (for example, due to incorrect installation of system component updates, or installation of a new OS).
- Corruption of system files through the use of a malicious software.
- Availability of free space on your favorite computer volume.
- The impossibility means that it can be done through software fixes or damage to the hard drive cable (a clear symptom of which).
- Malfunction of hardware components (damaged hard drive or SSD, defective video chip, etc.).
The Mac doesn't start up and freezes. What is it timid?
Depending on the causes of the problem, various variations and solutions emerge. You can try these steps yourself, but others can only be done in the service center. Below are some recommendations that you can make if your Mac stops engaging and gets stuck on the Apple logo or attraction indicators. Let's keep it simple.
Enchanted in safe mode
Few people know that the MacOS operating system allows you to use Safe mode, which allows you to detect various system fixing programs. The Safe Mode regime has a core \ u200b \ u200bsystemi with the main important functions, and the composite is the transfer of the file systems to the pardon of the pardon of the pardon of the gravity of the gravity of the pound, and the minute, and the minute. Therefore, in most cases, running your Mac in Safe Mode with the correct software restarting may cause the problem, if your Mac won't start and freezes.
In order to put your Mac (it doesn’t matter whether it’s a MacBook, iMac or Mac Mini) in Safe Mode, you need to When the computer is turned on, press the "Shift" key on the keyboard and press until the attention indicator lights up. It is important to note that booting up MacOS in Safe Mode takes significantly more than an hour compared to booting up the operating system as standard, so we recommend being patient.
Correction of errors for additional disk utility
Disk Utility is a specialized add-on for working with a backup volume and the MacOS file system, which allows, in addition to the standard functions of formatting or partitioning a disk, to check the disk and backup partition for There are permissions and the correctness of access rights to system files.
To run Disk Utility, if it does not allow you to download in normal mode, you will need to download disk space from the installed MacOS update partition. For whom is it necessary When the computer is turned on, press the Alt / Option (⌥) button And wait until the selection of storage sections appears on the screen, then select the update section (Recovery). Primus software from the MacOS update section can be activated by pressing the keys Command (⌘) -R when starting the computer.
If the update partition is launched, you must select the "Disk Utility" item:
In Disk Utility, select the “First Help” section and click “Run” (available for MacOS versions of El Capitan and Sierra), or manually select “Check the disk” and “Check access rights” (available for OS X Yosemite and older). If, at the end of the process, the disk utility informs you that the disk is good or has updates, then try restarting the computer and checking the installed operating system again. In order to successfully correct detected bugs, MacOS must correctly restart in normal mode.
If, during the recheck process, the disk utility displays notifications about damages that cannot be corrected, you may want to think about how to save important files and documents, and then reinstall the operating system.
Reinstallation of the MacOS operating system
If the Mac does not boot up and freezes on the boot indicator, and updating using standard methods does not give any results, then, most likely, you will hardly be able to do without reinstalling the operating system. In view of the fact that the computer is not activated, retrieving files and documents from the accountant can be very problematic.
In order to download files from something you can’t launch, you need to either connect the computer to another Mac in external disk mode (this method is not easy and requires the use of another Mac computer, a FireWire or Thunderbolt cable, and also suvorogo the same version of Mac OS on both computers), or connect to the computer from an external device with an installed operating system, or use special software for downloading and transferring data.
Unfortunately, there is no way for any Mac user to carry out similar manipulations, and the situation arises when their computer stops loading correctly and freezes, and simple methods do not help with the underlying problem, I simply don’t know Well, why bother? If your MacBook Pro, MacBook Air or iMac is not connected or the operating system freezes when connected, you can now contact our service center for help. We will carry out as quickly as possible all your concerns about saving important data and important adjustments, which our computers are designed for your computer, so that you can enjoy your stable work for a long time.
If your MacBook freezes on the apple, it can be fixed quickly - in 30 minutes. Turn around!
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11 comments to the article "What to do if the Mac is not attracted and gets stuck on the Apple logo"
Hello Oleksandr!
Sometimes, similar problems are associated with physical failure of the hard drive on your Macbook. Unfortunately, hard drives on MacBooks fail well and not as rarely as we would like. If you have such a situation, then we will need to earnestly collect the data that can be saved. After you buy a new hard drive, install it, and turn all your savings back, installing the system before.
The availability of such a service is agreed with the client after thorough diagnostics for damage to the hard drive.
I have exactly the same problem - the Mac doesn’t show up and gets stuck on the Apple logo
It hangs on the apple for a long time, then the chamomile appears and begins to spin, and so on ad infinitum.
I have important data there and I’m afraid of wasting it. Can you update my details and the usefulness of my MacBook?
How I got rid of the main work tool during the hour of travel.
Close to a month ago, I went to Moscow for a couple of years to visit my relatives. And in all areas of my activity, it was not to blame, even if they were tied only to clear access to the limit and to the beloved MacBook Pro 13''. There could be problems with the Internet, but the laptop would not fail me on more than one trip. I didn’t worry about him at all, and even for nothing.
The very next day in the capital I was left without my own head of production.
My pleasure - beware of summer beaches and get caught Mac like cold drinks.
Can you guess what happened to him? The guys from MacPlus, who pleased one local colleague, took the laptop for diagnostics, and at the same time shared information on the 5 most “popular” Mac defects. Next, based on our understanding, we will recognize what problems summer (and not just that) can bring with it.
1. Malfunction of the refrigeration system
People are often afraid of overheating, but what to expect when using your laptop:
Regardless of the cooling system MacBook significantly outperforms most competitors PC- decision, it still needs to be cleaned at least once in a while. Otherwise, it is gradually clogged with brood and saw, as a result of which its productivity noticeably decreases over time.
The result is not to worry about - serious overheating and failure of the motherboard elements is inevitable.
An infection can often occur immediately, so preventative work - cleaning the refrigeration system and replacing thermal paste - requires a minimum once at the river
Of course, this indicator is truly individual and depends on where and how you work on your own Mac. If, for example, the laptop had been lying idle for 5-7 months (though it’s hard to tell), the saw in the new one, for everything, would be a lot less, but in the same way, it’s actively being victorious.
On the right, what drank into the refrigeration system is lost due to its moisture “blame”. The fan, blowing hot air from the body, at the same time makes the middle of the saw from the excessive middle.
Once again, it is important that the indicators are individual - they lie in the minds of the robot, as well as in the laptop model. For example, a 15 "MacBook Pro is much cheaper than the same MacBook Air.
Varto say okremo i about like thermal paste. Some types can easily smell up to 140 degrees, while others have low threshold values, where the smell cannot cope with the pressure. When all the necessary heat is not supplied to the cooling system, some of it is lost “on the microcircuits”. With greater pressure, the temperature goes beyond safe limits, and the resource in this mode is exhausted more rapidly.
The drink itself in such episodes not only absorbs heat, but can also act as a conductor for the flow (of course, this does not happen often, but it is still possible).
With thermal paste, everything is not so simple: it doesn’t always hang by the river. Everything depends on what you do: permanent work in Final Cut or gra in Call of Duty It’s best to speed up the process, but rather to avoid it, it will eventually aggravate the problem.
It’s still not easy to comply with the rules: I would like once at the river It is necessary to show the Mac fakhivtsa. If the wine is clean, I’ll tell you about it directly. If cleaning is required, for the first hour the laptop will simply be stuck in the process of operation or galvanization, or even if you decide to turn on after cooling, it’s definitely not good.
You can remove the cover and marvel at the camp of the device for a few seconds, and the axis of grace of the apparatus, which has already gone well, is much more complex. And more expensive.
2. meals with exercises or food
It’s not so simple here, there are many options.
The battery died
Here you need to see two equal options. Either the battery has exhausted its resource and is not available for further use, or simply for any reason blocking by the charge controller. Basically, the MacBook won't turn on.
There is a lot of food from this publication. It’s just that it’s more obvious: the batteries in a Mac are very reliable, but not forever, and it’s too early to change them.
Practice shows that it is always possible, but never expected. Naturally, various utilities can immediately follow the battery circuit, affecting the system itself. But it is certain that the battery will fail without any obvious reasons: old and forgotten contact with water, unnoticed overheating or voltage drop, “fault” of an unclear charging device.
In certain situations, the attempt to charge the Mac may be recognized by the battery controller. physical problem. In this case, some of the circuits are specially displayed out of order - this is a dry mechanism. The battery itself may be fine, but the battery controller may be “dead” or not safe for a MacBook.
Of course, in such situations repairs are possible, but it may be due to the transfer of payment from the controller with the donor battery to the repaired one and their “use” with the help of an additional programmer. This is not possible for all battery models, but in these cases, when it is realistic, the repair process can be equal to the cost of replacing the entire battery. It will stay, obviously, where it is most reliable.
There were problems with the rose of life
For particularly hardcore laptop operation modes MagSafe It can go wrong for a number of reasons - the contacts have oxidized, are covered with rubbish, or have become worn out. In the case of a pouch, the MacBook battery is completely discharged and the laptop does not turn on without charging.
The situation with faulty MagSafe is not uncommon. You can blame it on any model, but most often it goes with the Unibody models of 2008-2012. These Macs are no longer released, but they are actively being used. Looking at the latest version of 2012, during preventive maintenance it is necessary to clean not only the cooling system, but also the surface of the outlets.
The MagSafe connector is permanently open and on the contact area settles saw. This will destroy the electrical connection, and the connections will be erased from time to time. To maintain contact, often add tenths of a millimeter.
If the contact is made frequently, the MagSafe board starts to heat up, and the battery may go wrong (the system reacts as often as the charging device is connected/connected), and then the motherboard itself.
So it is necessary, wisely, to use clear power supplies. And keep your Mac itself clean.
The life block “crooked”
Another reason for the inability to charge a MacBook is a non-working power supply unit, which can go out of order for a number of different reasons: from the same voltage drops to banal wear.
In this case, the Mac can completely recognize such a block. Over the years, charging performance will drop. It is entirely necessary for the system to “boil up” the power supply and show the status “battery is charging”, otherwise it will no longer be possible to charge the laptop with such a unit.
The situation is the same as when charging MacBook Pro 15" block view Air. The process continues, but is much more advanced, and if the battery has completely drained or “went to the point of death,” a jet of sufficient force is required.
The block must be selected carefully. On the right, it’s not just the same (the original or factory copies have good protection from various emergency situations), but it’s consistent with the parameters - the strength and strength of the power supply is responsible for the laptop’s capabilities.
Vikoristovvat more forceful charging is possible - but it’s safe, but the axis is weak (as they wrote earlier) - it’s not recommended. Most Macs will simply not charge enough (for example, if they turn off they won't retain a charge).
If you work on a laptop connected to such a low-power unit, the system thinks that it is charging, but it is actually discharging, and the battery drains less from the power supply during the charging hour, drains less, and the indication on the icon Let's not talk about batteries. Pouch - remove the battery and get out of trouble.
3. Serious voltage drop
Elements of the motherboard burned out
The worst thing that can happen due to a voltage drop is the failure of the elements of the motherboard. He is transferring a new replacement or expensive repair of the MacBook.
Such episodes will always be difficult. The whole language, or just one single element, “vibrates.” І result vidomy - Mac does not give a sign of life. With devices that have experienced a power surge, you need to be especially careful - the problems may be ambiguous and may not appear immediately.
For example, you have a reference Mac, But discrete graphics does not work or does not turn on WiFi, If you want both the module and the antennas, please contact us.
The answer is not always on the surface, but renewal is as real as, for example, when replacing a hard drive or other basic repairs. As a rule, such problems do not affect the durability of the devices. And as soon as they were put away, far away Mac You will work without problems.
The ones who suffer most often are the “cherry lances” - that’s what the plots are called, which are always under stress, no matter how small. The riziku zone also has “power” elements that work under the great strums.
The battery is dead
Due to a large voltage difference, the MacBook battery will go into destruction, or it may “die” completely. This has already been talked about more.
The life block “died”
Voltage drops often become the cause of “death” of the life block, which goes wrong either often or not.
It is best to replace such a block, even if it is damaged Mac- that's that varte.
4. Great and trivale vantage
The chipset or video chip burned out
MacBook You can use a very large and heavy equipment, as well as a proper cooling system, so that it needs to be cleaned regularly. Otherwise, it will become very overheated, which will cause its “death”.
To put it more precisely, it’s not just the chips themselves that can go wrong, but the “connections” - the additional elements that distribute the hardware to the microcircuits.
The video chip (also known as the graphics processor) is the main element, the “heart” of the video card. In today's Mac This chip is located on the motherboard.
The chipset is also part of the motherboard, and in some models it also includes a graphics processor. Plus, the microcircuit contains many other important functions. Even if all the chips are “infected”, the problem may still appear.
If overheated, the contact may break BGA View of the crystal itself and the landing spots on the chip lining (mirror square and square with textolite elements soldered on it).
More often than not, in most cases, the crystal lattice itself goes wrong. Temperature changes its structure, and the chip requires replacement. In this situation, the problem can be quickly resolved by heat shrinking the chip, which allows you to frequently update the structure of the crystal lattice or rotate the crystal-lining contact.
However, as a rule, when the graphics go wrong, the chip needs to be replaced with a new one, and the technique itself serves more for diagnostic purposes.
It seems likely that it will happen sooner or later in case of changes, especially trivial ones. There are a lot of options here: you can “burn” the Mac in sloppy gameplay, stop editing videos or render a great project.
A clean cooling system will help here, but it is not omnipotent. especially foldable Mac cope with problems in Windows, At least the latest versions (maybe also because there are much more powerful games under this operating system, below OS X).
5. The device was filled with liquid
The keyboard was used
The keyboard is the first thing that suffers when it hits MacBook rіdini. In this case, you can get out of trouble either completely or often. Because the power button was disabled, the laptop simply couldn’t be turned on. What’s important is that you may wake up not immediately, but after an alarming hour after the incident.
Therefore, it is cheaper and more reliable to clearly follow the rules: Filling the MacBook - go to the service center, as long as all is well, especially since diagnostics can be carried out without any harm in any event.
The keyboard is one of the biggest influences in Mac. Fill it in the easiest way. Often it hangs and works, but in this case you may be in the risk group and may, at some point, be in a rapt position.
On the right is that in the keyboard itself there is a small lining that separates the track from the skin key. The stench itself oxidizes. Technically, the keyboard can be serviced, but considering the labor and expenditure, such a robot will be priced at the same level as replacing it with a new one.
Often the backlight of the keyboard “buries” everything else - a small number of vomits penetrating through the keyboard are affected by the backlight (it is glued to the keyboard to stay strong and on the back side it is secured with a vkoyu). This is exactly what happened with my Mac.
Short circuit on the motherboard
If you spent money on the motherboard, it may immediately or in an hour suffer from a short circuit. The culprit is the oxidation of contacts.
Approximately 40-50% of the devices that are being repaired are either flooded or flooded. Once again, I have the utmost respect for those who have already become a notorious fact: contact with hair will not pass without a trace, practically for any device, it doesn’t matter, Mac tse, iPad or else iPhone.
Oxidation almost always occurs very quickly, especially if you do not physically connect the battery to the motherboard. It’s simply necessary to earn money, but most people with modern technology are unlikely to have screwing from the table at hand Pentalobe, Which is almost universally used by almost all new Mac.
Simply plugging in the laptop is not enough, in which case the food is still supplied to the board, and the power supply to it acts as an electrolyte. When the battery comes out on its own, the electrolysis reaction starts, and its products appear on the conductive elements and tracks, and especially smaller components may be completely depleted in the process.
If you have suspicions and you know for sure that water has gone through the middle, repairing a MacBook is not an option. I would like to recheck the camp. Again, it’s better to be on the safe side, and get angry as soon as possible, if the damage is small, and even then, it’s easier to turn Mac to life.
Sometimes you have to renew the tracks themselves. The fiber under the microcircuits is especially foldable. It is not hermetically sealed until the plate is sealed, but there is a microscopic gap to allow water to penetrate there.
The part in an ultrasonic bath in technical alcohol works in two directions - from a readily available water source (water is more important than pure alcohol), and ultrasound allows you to remove oxides from the surface.
Here it is also important to note that the water itself for electronics is not so dangerous, but unfortunately, perhaps everything that is lost in Mac- aggressive media - carbonated water, kava, sweet tea, alcohol and so on. If the board is connected to the battery and the unit, electrolysis proceeds much more rapidly, and in practice the battery is connected to the battery at the same time.
Let's repeat it again. As soon as after the incident, everything is in order with your computer (at first glance), the equipment is still worth a look, and the problem may appear much later if you already forget about what you did. And, as practice shows, it is much more difficult to update such laptops (and it will never be possible again).
All is well that will end well - that’s for sure
As it appeared, without my knowledge MacBook Pro poured chimos on the glass "Mojito" Flying onto the beach may be the reason. They hurriedly wiped out the hull, but it sank in the middle. Finally, the keyboard contacts oxidized, and the power button simply didn’t work. The keyboard was completely replaced and the laptop arrived. It’s good that the cocktail didn’t reach the mother’s pay.
While I was drinking kava and drinking MacPlus junkies, they decided to check the laptop for other problems that were not detected. Having lost a little blood.
How has your Mac ever let you down?
P.S.: For those who have everything bad, we recommend replacing the battery ( 3.71 з 5, rated: 7 )
The biggest problem when going to the service center with a MacBook is its “non-inclusion”. If you haven’t spilled anything on anything, haven’t noticed “impacts” when vikoristan and don’t smell the smell of burning, it’s not a good idea to rush to the repair service. There are ways that can help correct this situation, especially if it is not a mechanical breakdown.
What's wrong, why can't you turn on your MacBook? First of all, stop panicking. Let us first understand the concept of “does not turn on”. This means that when you press the live button, there is no reaction from the laptop. People often confuse this concept with the multiplicity of the image on the screen and the presence of attraction. Through a variety of indications from the appearance of hot diodes, you can judge whether the device is turned on by the operation of the fan. When turned on by the identifier, you can play the sound of the system.
Why won't my MacBook Pro or MacBook Air turn on?
The simplest breakdown in such a situation may not be the air at all, but the life block. If the charging device breaks down, you will not be able to charge the laptop, and if it is completely discharged, it will probably not turn on. Try connecting another life block and after a short period of time try turning on the device.
keyboard
On Apple laptops, the “power” key is one of the keyboard buttons. The functionality of the keyboard means the functionality of the button. A common cause of damage to this key is getting lost in the middle or getting stuck. The power button when the gadget is turned on is under voltage, so it will only take a small amount of power.
Discharge or shock
If the laptop is completely discharged, then in order to turn it on it is necessary to remain on charge for an hour to replenish the minimum level of energy in the battery. If the problem is a power failure (the indicator does not light up when eating before cooking), you need to remove the battery for an hour. After connecting the battery. As soon as the laptop is used, the problem is solved.
The availability of food can be obtained through those with MagSafe. If you suspect that the reason why your laptop may not turn on, go to the service center.
the soil has been spilled
If water gets into the middle of the process, it will cause contacts to freeze and oxidize. As a result, not only the keyboard, but also the system board may go wrong. If you spilled anything on the device, soak it up and immediately take it to the repair service.
screen
It’s obvious that the laptop is turning on (there’s a slight sound of the system turning, the noise of the fan), but there is no display on the display, which seems to be a problem with the video card. If you doubt that the fan is running, press the “CAPS LOCK” key - if it lights up, this means there is a display problem.
part burned out
Such a part is most often the system board, through which about ten different voltages are supplied to it. However, the chipset and microcontroller can often go wrong. Such a malfunction can be suspected after the failures described above have been disabled.
Diagnosis at home
Without special tools, it is difficult to diagnose the alarm system. You can also check the battery discharge and the functionality of the “on” key. To remove the crust, you need a special twist. To check the button, you need to remove the cover from the battery and screw it. After connecting the battery. Unscrew the keyboard cable and connect the charging device. This method works for models from 2011 release.
In a situation where the battery is low, you need to remove the cap and the battery yourself. After connecting the device to charge. The laptop may turn on in the block. Often this procedure can be lost, you will need to reset the SMC settings. It is necessary to discard this before you begin to sort it out.
System Multicontroller (SMC)
The multicontroller ensures the life of all connections on the board. Activation and modes are provided by the SMC itself . Your robot can be connected to a connected laptop. The multicontroller is equipped with its own firmware and has a reserve of memory where the settings are saved. Malfunctions of these programs lead to various “glitches”. To eliminate these faults, you need to reset the settings to the original settings. This can be done in two ways:
1 Turn off the life supply. Remove the battery. The supply of food to the multi-controller will start and after switching on, the adjustment will be automatically reset. 2 Replacement of the associated keys on the keyboard. For all Apple laptops, this combination is transferred. When pressed, a signal is sent to the multicontroller and the settings are reset. For all laptops of the company, the procedure is as follows: turn on the charging device, press the “Shift”, “Control” and “Alt” keys at the same time. І press the “turn on” button. If the charge indicator is orange, it will turn green after these actions. Robiti Qiu procedure is more beautiful on the gadget.If the methods described above did not help you, and because you still do not understand why the device does not turn on, take the gadget and take it to an authorized repair center for diagnostics and further repairs. For residents of great cities, for example, Moscow, it is not difficult to find such a service.