Do-it-yourself MacBook repair: troubleshooting instructions. Hardware problems. Stages of self-diagnosis of a MacBook: what you can do before contacting a service center

Today we’ll talk about collecting diagnostics in macOS

Information about the computer and programs

If you select “About This Mac” from the Apple menu and then click on the “System Report” button, you will see a bunch of information about your computer. So, the system_profiler utility is the same thing, but a hundred times more detailed.

If you call system_profiler without parameters, the entire information will be displayed, which in my case means 3.8 MB of text. So I recommend immediately writing something like system_profiler > ~/Desktop/profile.txt or using grep to find the required line.

Among what system_profiler spits out, you will find information not only about the system and devices, but also about all programs, drivers, plugins, libraries and fonts. At the same time, parts of the system logs and a bunch of other crap will be displayed.

If all this does not interest you, write system_profiler -detailLevel mini, and then you will only get information about the computer.

You can also add parameter -xml, to make it more convenient to process the received information in the script.

Directory service

The dscl - Directory Services utility is responsible for communicating with the directory service. Command Line, it at one time replaced netinfo. Got a whiff of sysadmin stuff? This is true, and we will not dwell on them in detail.

For starters, a couple of commands: dscl . -list /Users will list all users, and dscl . -read /Users/<имя пользователя>- information about the user in XML form. Even a file with an avatar is encoded inside!

By the way, if you run dscl without parameters, it will enter interactive mode, where you can use the usual cd and ls commands for navigation, and view the contents of branches using the read command.

Directory Services caches and user list

Dscl comes with another utility, dscacheutil, which is responsible for working with directory service caches. You probably know it much better than dscl, because for a long time it was precisely this that needed to be run to reset the DNS cache.

By the way, in latest versions This does not work on macOS, and instead of dscacheutil -flushcache you now need to write killall -HUP mDNSResponder.

As for dscacheutil, it is convenient to use it to display a list of users: dscacheutil -q user. Unlike what dscl outputs, the result is much easier to perceive.

Reading and (not) resetting values in NVRAM

Every Mac has non-volatile memory that stores variables important to the computer's operation. What exactly is there? The nvram command will help you find out: write nvram -xp, and you will see everything.

There are both harmless things like sound level and the latest keyboard layout, as well as more interesting ones like the Find My Mac key and completely mysterious EFI parameters.

All of them are presented in binary form, and the only fragment of a description that I could find is contained in a CIA document leaked and posted on WikiLeaks.

Parameters can be set with the nvram command<переменная>=<значение>, delete with nvram -d command<переменная>or load from file using nvram -f<файл>.

You can reset everything by typing nvram -c. But usually NVRAM parameters are reset only if something went wrong and the computer does not boot. To do this, press Alt-Cmd-P-R immediately after turning it on and hold it for 20 seconds.

Please note: if you change parameters using the nvram utility, they will be written to non-volatile memory not instantly, but only when the computer is turned off in normal mode.

RAM statistics

There are many ways to see how much RAM is used. Perhaps the simplest is to open the “Memory” section in “System Monitoring”: the most useful parameters are presented there in a visual form. From the command line, it is best to use top.

If you need the most detailed information, then you can refer to vm_stat. The disadvantage of this utility is that all values are given in pages equal to 4 KB. However, it is not so difficult to recalculate, and there are a lot of scripts on the Internet - for example, this one-liner in Perl converts everything into megabytes.

You can also use vm_stat to track changes in memory load over time. To do this, enter vm_stat -c<число> <секунды>, where the first parameter is the number of measurements, and the second is the interval between them.

Resetting disk cache in memory

Temporarily get a couple of extra gigabytes random access memory The purge command helps. It is called from root, has no parameters and clears the disk cache, bringing it to the state it was in after loading the OS. But usually the memory manager does not need such help - it will gradually unload the excess if the RAM runs out.

The certificate says that purge is generally needed mainly for testing, but who knows how life will turn out?

File system access tracking

The fs_usage command, launched without parameters from root, displays a record of each access to the file system. This is needed in cases where a program crashes on startup or produces mysterious error messages. If the problem is that one of the files is damaged, then you can find it with fs_usage.

To reduce the need to rummage through the results, limit the messages to one process by writing its name after fs_usage. If you only know the ID, type sudo fs_usage pid .

Another useful parameter is -f, after which you can set a filter for operations with the network (-f network), with files (-f pathname will add a path column) and so on. If the text does not fit on the line, add -w.

Determining the cause of the malfunction is the very first thing you need to start repairing your MacBook. And the point here is not that “this is how it should be,” but that replacing components in Apple laptops is a very expensive process, so you should be absolutely sure that it is really necessary.

Cost of services:

Problems that a MacBook user may encounter can be divided into two groups:

Software

They are associated with incorrect installation and operation of the operating room Mac systems OS X or software. In this case, problems occur directly during or after working with an application or may occur with a certain frequency.

They are caused by a malfunction of laptop modules such as the MacBook motherboard, hard drive, matrix, etc., and in this case, repair or replacement of MacBook components will be required.

Stages of self-diagnosis of a MacBook: what you can do before contacting a service center

If you have ruled out a software failure, the cause of the problem may lie in connected equipment that is not working correctly. Turn off the device and try to disconnect all external equipment, leaving only the mouse. If the laptop starts working normally, then further diagnostics of the MacBook will consist of alternately connecting the equipment and turning on the laptop. This way you can determine what exactly led to the problems.
If this does not help and the laptop continues to operate in an incorrect mode, you should check the hard drive and also rule out problems with access rights. To diagnose a disk in a MacBook, there are two programs - Disk Utility and fsck command(the latter is used for MacBooks with OS X 10.4 or later early version). The check must be carried out in a safe mode.
You can use the Hardware Functional Test to diagnose MacBooks running OS X 10.7 or later, or for devices that went on sale in July 2013 or later. Apple Diagnostics. In this case, it is very important to turn off all external equipment and also connect the laptop to the network.
To enter MacBook diagnostic mode, you need to hold down the D button after turning on the laptop. A gray screen will appear, and you will be able to launch a utility to check the hardware (you can select full check or partial). If the diagnostics are successful and the cause of the failure is identified, a message will be displayed with a record of the corresponding error.

Full diagnostics of MacBook - only at the service center

The ability to independently diagnose a MacBook is, of course, wonderful, but a complete picture of the laptop’s performance can only be obtained by contacting service center. For example, if the computer does not turn on or maintenance has not been carried out, the cooling system has failed, the battery or charger is damaged, it will be possible to determine the cause of the malfunction only after disassembling the laptop and testing the circuit. The MacBook will also need similar diagnostics if it has been dropped or flooded with liquid.

Disassemble Apple laptop It’s not easy even for a specialist, so you shouldn’t try to open the case and get the components yourself. Contact the service center - and the MacBook will be thoroughly diagnosed, and the technician will be able to determine the exact cause of the equipment malfunction.

Check with the manager by phone for the exact price for repairs.

How much does it cost to replace a battery~ Anna ~ 05/25/2018

Good afternoon
My computer died when connected to an outlet (there was a spark and the adapter also died)... I think either the computer died completely or the battery (I hope for the latter, of course)). Tell me how much the diagnosis will cost, how much possible repairs and deadlines

Macsave Center Answer: Good afternoon, Laptop diagnostics are free with us, as a rule, laptop power circuit repairs range from 3500-6500 rubles

I reset NVRAM on Mac Air and now it won’t turn on~ Dima ~ 03/22/2017

I reset the NVRAM on the Mac air and now it won’t turn on when I press the Mac safe the sensor turns green and goes out

Macsave Center Answer: Dmitry, good afternoon!
There may be a problem with the board. The device needs to be diagnosed. Bring it, we'll see. Diagnostics are free.

Poppy freezes ~ Enakentiy ~ 09-03-2017

Good afternoon I have a Mac Book Air A1466 2012 The problem is the following: when working with a Mac in normal mode, the touchpad works weakly and often does not respond to commands, secondly, when you leave any programs on and close the lid, or when the battery runs out and it turns off, then after opening or connecting to the network, the mouse cursor begins to float and does not respond to tasks until you forcefully close all programs that were open before. What could be the problem? Thank you in advance! I also tried to run system diagnostics by pressing the d button when turning it on, went into test mode after asking to connect to the Internet, but it couldn’t connect to the Internet because it doesn’t see my Wi-Fi router but sees all the others nearby, although in normal mode it works through a router without problems. Thank you in advance

Macsave Center Answer: Innocent, good afternoon!

USB does not work ~ Sergey ~ 02/13/2017

Good evening! Not USB operation on a MacBook Pro 2011. If you connect your phone, it charges it, but doesn’t see it, and if you connect a flash drive, it doesn’t see it either. I tried the hard drive: the indicator lights up, but is not found in the system. What could it be? Thanks in advance for your answer.

Macsave Center Answer: Sergey, good afternoon!
It is difficult to say remotely exactly what is causing the difficulties. The device needs to be diagnosed. Bring it, we'll see. Diagnostics are free.

Problem with sound through headphones ~ Vyacheslav ~ 01/31/2017

If you insert headphones while music is playing on the iMac, the sound continues to come through the speakers, in order for the iMac to see the headphones, for this you need to enter standby mode, and then exit it, and so on each time, so that you can hear the sound through the headphones. It's a software problem, as you understand?

Macsave Center Answer: Vyacheslav, good afternoon!
It is difficult to say remotely exactly what is causing the difficulties. The device needs to be diagnosed. Bring it, we'll see. Diagnostics are free.

MacBook Pro (13-inch, Late 2011)Intel 6 Series Chipset restarts without permission~ Arman ~ 01/05/2017

hello, I have a MacBook Pro (13-inch, Late 2011)Intel 6 Series Chipset:
Manufacturer: Intel
Product: 6 Series Chipset
Communication speed: 6 Gbit
Installed connection speed: 3 Gbit
Physical connection: SATA
Description: AHCI Version 1.30 Supported

Initially there was a Toshiba MK5065GSX 500 GB HDD, over time it filled up, I decided to change it to a seagate st2000lx001 2tb, after the replacement it periodically restarts without permission about once a day or once every two days, and also sometimes turns off with a 3 short beeps, did the diagnostics by holding D, found no errors, tried installing back the Toshiba MK5065GSX 500 GB, everything works without failures. I read on the Internet, some write that the temperature needs to be changed, tell me what it really could be, maybe a defective seagate st2000lx001 2tb? Thank you.

Macsave Center Answer: Good afternoon
It’s difficult to say from a distance exactly what the difficulty is. Bring it, we'll see. Diagnostics are free.

Overheating ~ Maxim ~ 04-01-2017

Good afternoon. I recently bought a used macbook pro 15 2012, not retina. I replaced the thermal paste and cleaned it from dust, since the computer was heating up, but did not conduct any tests with it: it warmed up even while surfing the Internet. After cleaning this problem disappeared. But recently I decided to run a performance test. And during the test CPU temperature In a few seconds it jumped up to 100 degrees. The coolers were just starting to spin, but I didn’t wait and turned them up to full power using Macs fan control. Looking deeper, I saw that Maximum temperature for GPU PECI and CPU PECI. What could be the problem?

Macsave Center Answer: Maxim, good afternoon!
The device needs to be diagnosed. Bring it, we'll see. Diagnostics are free. It’s difficult to say remotely exactly what the reason might be.

MacAir 13 2011 periodically shuts down when pressing Delete~ IVAN ~ 05-12-2016

Good afternoon I'm worried about the Mac randomly shutting down when I press Delete.

Macsave Center Answer: Ivan, good evening!
The device needs to be diagnosed. Bring it, we'll see. Diagnostics are free.

stuck~ Olga ~ 11/26/2016

Good morning, I have Mac pro Retina, (15-inch, Early 2013, 2.4 GHz Intel Core i7 processor, OS X 10.8.5 software, 8 GB 1600 MHz DDR3 memory) began to write low on hard drive space. I bought external drive to transfer photos. I leave it overnight, in the morning I see that the icon says the recording has stopped, i.e. some were recorded, but some were not recorded ---- 1) you need to rewrite all the photos from Ifhoto to your hard drive.
2) Also overwrite everything from the image folder
3) All folders from the desktop.
While I tried to do this myself, all the photos from the folder, their images ended up in the trash, then I copied all the photos and tried to transfer them to an external drive, but they ended up on the desktop and the Finder froze (I tried to complete this process in various ways, but it didn’t work out) Finder and 1500 photos plus folders on the desktop. I need help. How much is it?

Macsave Center Answer: Olga, good afternoon!
The cost of cloning a system with data is 2500 rubles. Bring it, let's see what's the matter.

problem with macpro 2010 ~ Olga ~ 10/26/2016

Hello! The problem is this: the screen periodically goes blank during operation, but you can hear the processor working. goes out unexpectedly, and may not light up for several minutes and then work again. The monitor itself is fine - connected to the laptop - everything worked fine.

Macsave Center Answer: Olga, good afternoon!
It is necessary to diagnose the device. Remotely it is difficult to say exactly what is the cause of these difficulties.

The Mac slows down, but as soon as you connect it to power, everything is ok / MacBook Pro 13 2011~ Alexey ~ 10/21/2016

It started unexpectedly, the computer was not subject to any external damage! It slows down wildly, to the point of intermittent movement of the cursor on the screen, but the highlight is that as soon as you connect the Mac to the power supply, it comes to life before your eyes and everything works properly! But it’s worth noting that it doesn’t matter overall speed work is not the same as before! Suspicions about the video card, but how does this depend on Power Consumption?
What is the reason and how bad am I?

Macsave Center Answer: Alexey, good afternoon!
It is necessary to carry out diagnostics and look at the device. It may be enough to clean the cooling system. Bring it, we'll see.

Full charge cycle 20 hours ~ Alexander ~ 09/16/2016

I have MacBook Air 13. You could say it was inherited. The battery only has about 300 charge cycles. On this moment A full charge cycle is about 20 hours. Tell me what this is connected with and what to do?

Macsave Center Answer: Alexander, good afternoon!
It is necessary to diagnose the power circuit and possibly replace the battery.

MacBook slows down ~ Vladimir Pavlenko ~ 01-09-2016

Hello! I have the same problem, I went to an event that took place outdoors! There was no stationary electricity, the organizers had a 6.5 kW gas-electric generator, I had to charge my MacBook from it! The next morning I put the MacBook on charge and discovered that the charging indicator lights up for a second when connected and that’s it, charging doesn’t happen, the screen shows that the battery requires maintenance. I found on the net that if I press a key combination, I don’t remember which battery should work! helped! Charging is now on! The indicators are still on! BUT IT BECAME TERRIBLY STUPID. Tell me what could be the problem! Mak beech model MD 101 2012! Even while I’m writing to you, it keeps getting down!

Macsave Center Answer: Vladimir, good afternoon!
In this case, it is necessary to change the battery! Check the device model.

After closing the lid, the macbook a1342 does not turn on or start ~ Andrey ~ 08/25/2016

Good day. I was working on a Mac - we were taking pictures in a photo booth - I closed the lid, drank tea - I opened it - and nothing happens - it doesn’t start from sleep mode, I connected the Magsafe - at first it was green, then red - the white diode does not react. Didn’t subject him to mechanical influences, didn’t spill any liquid - nothing - he died in the same place,

Macsave Center Answer: Andrey, good evening!
In this case, it is necessary to carry out diagnostics to identify the causes of these difficulties (power circuit motherboard/ north bridge). Bring it, we'll see. Diagnostics are free.

Macbook pro 17 won't start~ Marat ~ 08/13/2016

Hello.
The computer was left in sleep mode overnight. Didn't start in the morning. Coolers do not start. But there is a loading wheel and a slider. At 100% load the computer simply turns off. What could be the problem?

Macsave Center Answer: Good afternoon. There may be a problem with the video card or hard drive. You need to do a diagnosis, it's free

Problems with resuming hibernation mode in Win7 Boot Camp~ Vitaly ~ 06/17/2016

Hello, I own a MacBook Pro 15 Late 2013, it was just recently produced replacement of hard disk in the service center, upon his return the laptop stopped coming out of hibernation mode, it just hangs with a black screen, I tried everything, found it on the Internet on this topic, rolled back the drivers, turned off various features in power modes, nothing helped. I tore down the system, deciding that maybe the problem was there, after reinstalling the problem remained on clean Windows, of course with installed drivers, exactly the same thing happens, the music freezes when exiting hibernation mode, please tell me what to do and can you help?

Macsave Center Answer: Hello, you need to look / diagnose, come to us for a free diagnosis

Question about work MacBook keyboards Pro 2011~ Pavel ~ 06/15/2016

Good day!
I have a MacBook Pro 2011 Unibody. I clean it periodically and change the thermal paste. During the last thermal paste replacement (disassembly, removal of the motherboard), I inadvertently damaged (torn off) the touchpad cable. Having decided that before replacing it I would use the mouse, I assembled it, which in general is not the first time I’ve done it, and I discovered that the keyboard did not work either. After that, I disassembled and checked the keyboard cable a couple more times, but there was no result. The keyboard is silent. ((Tell me what could be the problem? Could the non-working touchpad on the example be somehow connected with the keyboard? Or maybe another option? And also how much does the cable for the touchpad, the keyboard and the cost of work cost?

Thank you!

Macsave Center Answer: Good afternoon, I need to diagnose, perhaps the problem is in the touchpad shorting cable or the connector and keyboard cable are also damaged, you need to look, the cost of replacing the cable is 4500 rubles since it comes with the touchpad. Our diagnostics are free.

macbook air 11 A1465 turns off ~ Vladimir ~ 09-06-2016

Hello, it turns off after connecting external drives via USB and Thunderbolt, there is no shutdown system: it can work for three minutes and five seconds, a flash drive in the USB connector does not turn off the computer, if the computer involuntarily turns off, you can turn it back on only by disconnecting the power supply, that is, from the battery

Macsave Center Answer: Good afternoon, we need to diagnose, perhaps the problem is in the power circuit on the motherboard and with high energy consumption on external devices The MacBook turns off and locks the BIOS. Diagnostics are free.

Cooler MacBook Air 2015~ Pavel ~ 08-06-2016

Hello!
MacBook Air, after six months of very gentle use, suddenly the cooler began to spin up to 6500 rpm. At the same time, the processor temperature, etc., is 28-31 degrees
Reboots, reset sms - no result. Works quickly and stably, only the cooler thrashes
What could it be and what should we prepare for?
Thank you!

Macsave Center Answer: Good afternoon, perhaps the problem is in the cooling system, if not, then bring it in for diagnostics

Problem with discrete monitor ~ Daniil ~ 05/31/2016

Hello, I have an MBP 13" late 2011, when connecting a second monitor via a Mini DP adapter - VGA image appears on it for a second and disappears. If you leave it like this for a minute, the Mac starts to slow down a lot and artifacts appear. If you manage to set the resolution to ~1360x780 on the second monitor, everything works fine and the monitor works (though sometimes it blinks, about once every 30 minutes). The problem is most likely not in the software (I checked both on OSX and on Windows via Boot Camp, reinstalled the OS) and not with the adapter (I checked it on MB 13" 2010, everything works fine in 1920x1080). What could be the problem? Also not The card reader works (the system sees it, but does not read the cards), which means the problem is not in the video card, but in the motherboard?

Macsave Center Answer: Good afternoon, apparently the problem is in the bridge, they have video and power management there

MacBook Pro 17 A1212 cooler does not turn off ~ Igor ~ 05/27/2016

Good afternoon I got a MacBook Pro 17 A1212, when I turn it on, the coolers turn on almost immediately and don’t turn off again, even when you reboot. The cooling system has been cleaned. Could it be the OS or does it need to come to you for diagnostics? I don’t know how it worked before, I didn’t have it. Thank you!

Macsave Center Answer: They all behave this way over time, it’s practically the norm.

card reader~ Alexey ~ 08-05-2016

Hello, the card reader in the 15" firmware 2011 does not work. It is in the list of devices, but it does not read cards. Is it possible to fix it and how much will it cost?

Macsave Center Answer: It is necessary to diagnose the TC, it is soldered to the motherboard

MacBook ~ Ella ~ 05-05-2016

Hello, I have the same problem. The MacBook started to glitch, I restored it from the previous version, but the spacebar now prints =, and the shift key increases the volume. I completely reset the settings and set them to factory defaults, but the problem did not solve. What to do?

Macsave Center Answer: Good afternoon. Sometimes there is a keyboard cable or the keyboard itself fails, but first reinstall the system from scratch and without transferring data

The built-in keyboard does not work on the MacBook Pro (Retina, 13-inch, Early 2015)~ Vysilii ~ 04/03/2016

Good afternoon Can you tell me what the reason is? The keyboard on the MacBook Pro (Retina, 13-inch, Early 2015) works sometimes. Everything is fine with the computer, everything works properly, it has never been wet with water or fallen. When I hold the poppy from below and lightly press the bottom of the lid, the keyboard works, then I stop pressing, it stops working and tries to find the keyboard and touchpad (mouse) with using Bluetooth. What could be the problem? and how long will it take to fix it?

Macsave Center Answer: Good afternoon, perhaps there is no contact in the keyboard cable or the issue is in the track pad since the keyboard is powered through it, you need to diagnose

Mac 725RS/A won't boot~ Andrey ~ 03/19/2016

Hello!! This situation happened to me, I’ll describe it step by step. The Mac was turned on and in Opera mode two horizontal lines passed across the screen and the laptop froze, I rebooted it with the button and after that it no longer booted, that is, it turns on sound activation then the apple appears and the loading circle continues on the gray screen, after which the loading wheel disappears and the gray screen remains. I tried to boot in safe mode while holding Shift, the loading scale reaches halfway and disappears and a gray screen remains. I pressed Option and selected the OS installation disk, the loading wheel appears as if I turned on a Mac and disappears, but the screen becomes backlit black. Tell me approximately what it could be??

Macsave Center Answer: Good afternoon, apparently the video chip has failed, a common failure, replacement costs 10,000 rubles, but first we’ll diagnose

macbook pro 15~ Max ~ 11-03-2016

Good day! I've been struggling with the same problem for several weeks now: my computer turns off spontaneously. Previously, the picture froze and the Mac turned off, but now the screen is suddenly black and turns off. (May work for a few hours or a couple of minutes) Diagnosed hardware equipment gave error PPT004. But it is also installed on the computer in parallel with Mac os x, Windows. Which, to my surprise, works stably and does not turn off. So the problem is in the Mac software. Here's what I did: I completely reinstalled the software, reset the SMC, and read the logs (system, diagnostics, etc.) and found nothing suspicious. What should I do?

Macsave Center Answer: Good afternoon, I need to diagnose, maybe the problem is in the video card, although it should also appear on Windows

Topic of the question ~ Exiled ~ 02/21/2016

Hello! I have a 2008 MB134. My old man has been plowing honestly all these years, but he began to freeze often, he works on mains power, the battery died more than a year ago, along with the adapter. I bought a non-original adapter, the Mac started to make a lot of noise, the keyboard backlight disappeared!!! I would like to know from you how much it will cost me to replace the hard drive with an SSD, and to repair the keyboard, the delete and enter buttons do not work!!! Thank you!!!

Macsave Center Answer: Hello, replacing a button costs 300 rubles, ssd - it all depends on the volume, you can look at the prices in stores, installing 1500 instead of hdd and 2500 instead of cdrom.

Problem with Mac Book~ Roman ~ 02/12/2016

HELLO! MY COMPUTER BOOTS UP AND SHUT OFF IMMEDIATELY. Reasons? What should I do? Thank you

Macsave Center Answer: Hello, there can be a lot of options, most likely the problem is on the motherboard - the bridge or the power circuit. We can offer free diagnostics.

Macbook pro 15.2011 hangs ~ Oleg ~ 12/27/2015

Hello! When working with a Mac book, problems arise when opening photos and some videos on the Internet, and on the same site something opens and something doesn’t. The laptop freezes and starts to warm up, then there’s just a blue magnetic background and that’s it. I have to forcefully turn it off. reboot everything seems fine

Macsave Center Answer: Good evening, maybe Hard drive, software, cooling system. It needs to be diagnosed, you can come and see everything.

Problems with MacBook Pro~ Nikita ~ 12/21/2015

Good afternoon. Unpleasant and unexpected things happen to my poppy. The Mac is a little over a year old, has never let me down and worked perfectly. For the last three days, the following has been happening to him:

My Mac has more than 20GB of free space, but in recent days, as soon as I turn on my Mac, the memory melts away in a matter of minutes, it displays a message that the startup disk is full, requires me to close all programs (and closes them myself) and the memory shows 0kb. That is, the operation of the poppy can take no more than 10 minutes. Afterwards I have to recharge it (which unexpectedly also caused problems and it doesn’t respond every time). After the reboot, there are again about 27 free GB, and every time to check it, I remove a lot more from the Mac to clean it.

In this situation, I turned off the Mac before going to bed, and in the morning I discovered that it had not turned off and the battery charge was zero. The monitor, as far as I remember, went out.

I’m used to the fact that after leaving for about 15 minutes, Poppy goes to sleep. Having got ready for business in the morning and returning in the evening, I discovered that the Mac’s monitor was on as it was a few hours ago. He did not go into sleep mode.

What could all this be connected with?? All this happened starting from December 18 (4th day), before that it worked properly.

Macsave Center Answer: Good afternoon, I need to diagnose, probably a fault in the power circuits

Problem with Eran and lags ~ Denis ~ 12/11/2015

Hello, in general, the problem with mac air 11 is that one day I turned on the computer and stripes appeared on top of the screen, as if distorting the image, and after a few minutes they disappeared.. then the image itself just became as if it had been divided into layers, everything was grainy, and again disappears. At this point the adventures only continued, a lag appeared - the Mac just started to get stupid after some kind of usual operation (for example, closing a program) it thinks, and then just reboots, are these problems related? what to do?

Macsave Center Answer: Good afternoon, I need a ride for diagnostics, the situation is varied and not completely clear. Diagnostics are free.

Macbook pro mid 2014 turns off randomly~ Albert ~ 03-12-2015

Hello. MacBook Pro randomly turns off. Completely random. I carried out diagnostics using the laptop itself, it says that it is required service maintenance battery I decided to check that the problem really was there. I unplugged the battery plug and started working purely from a 220 volt network. The laptop started to work slower, but stopped randomly turning off. Does this mean that the problem is really in the battery?

Macsave Center Answer: Good evening, the problem is probably in the battery, the brakes may also be due to a damaged battery, replacement cost is 8000-9500 depending on the model

MacBook won't turn on~ Sergey ~ 11/19/2015

Good afternoon. Disease history. The MacBook Pro did not wake up the next morning after going into sleep mode. I started it a couple of times by pressing the “NVRAM reset” keys. Once again, I didn’t engage in these actions at all. The battery is charging. Now fully charged. Can you tell me the algorithm of actions? Thank you

Macsave Center Answer: Good afternoon, you need to diagnose, often similar symptoms are associated with a video card failure, diagnosis is free 1-2 days

Macbook pro mid 2012 md 101 does not turn on ~ Andrey ~ 11/17/2015

Good evening! Tell me about this problem - after a loss sound signal and the appearance of the apple, the Mac turns off, but at the same time it starts checking errors normally (Apple Diagnostics)! SMC - reset, no use, there is a suspicion that the SMC chip has failed! How much will a replacement cost?
PS: The Mac was flooded, but it worked for half a year without problems!
I tried all possible existing commands on Mac to no avail!

Macsave Center Answer: Good afternoon, this chip very rarely fails; in your case, I can’t immediately tell what the reason is, it needs to be diagnosed.

MacBook slows down ~ Anna ~ 10/21/2015

Good afternoon The battery on the MacBook Pro (2011) has died; it only works from a wall outlet, but at the same time it is terribly slow. Could these two problems be somehow related? Standard utility The disk diagnostics did not reveal any problems.

Macsave Center Answer: Yes, there is probably a problem with the battery, it needs to be changed, the cost is 5500-6000 rubles depending on the battery model

Topic of the question ~ abu ~ 09/30/2015

macbook air 13, when I turn on the mac it immediately makes noise, freezes a lot, and gets hot. 6500 rpm, which is possible do and repair what is the price?

Macsave Center Answer: Good afternoon, the cost of diagnostics is free, repairs after diagnostics, the problem may be in the chips and the power circuit

Macbook pro turns off ~ Daniil ~ 09/20/2015

Hello. The MacBook Pro 15 (mid 2010) turns off after 5-6 hours of operation from the network. apparently overheating. After I disconnect the adapter and the machine cools down slightly, it works more or less stably. Is it possible to fix/fix this?

Macsave Center Answer: Good afternoon, the cost of cleaning is 2500 rubles, it does not include cooler lubricant and new thermal paste, if this is the problem, then everything will help

Apple equipment repair ~ Evgeniy ~ 09/14/2015

Hello, something burned out on my MacPad and it doesn’t work after an electrical overvoltage. What kind of breakdown is it and how much will the repair cost?

Macsave Center Answer: Good afternoon, the cost and time can only be determined after the diagnosis, it is free and lasts from an hour to 2 days depending on the breakdown situation

macbook air touchpad stopped working ~ ergek ~ 09/12/2015

Hello, in the winter I spilled some water on the keyboard and took the touchpad in for service. They fixed it for me and everything worked fine, but after a while the touchpad began to get dull, but I didn’t pay much attention to it. the other day I accidentally pressed the touchpad (not hard) and it stopped working altogether and the keyboard stopped working. It only works when you press the touch quite hard.

Macsave Center Answer: Good afternoon, we need to carry out diagnostics, the whole fault seems to be in the touchpad and it needs to be changed, the cost of replacement is from. 3000-4500₽ depending on the MacBook model.

Diagnostics~ Maxim ~ 09-09-2015

Good afternoon! How long does it take to diagnose a macbook pro?

Macsave Center Answer: Good afternoon, the average time is from 10 minutes to 3 days

MacBook Pro won't load ~ Natalya ~ 08/16/2015

Hello, MacBook Pro won't boot. After unsafely removing the flash drive, the MacBook stopped starting. I turn it on, it's loading White screen, apple, the loading bar is at the bottom, it reaches 1/3 and turns off, there is also Windows 7, it also stopped starting, when you load Windows 7 on the MacBook, " blue screen". Help me, how to save information on my computer and what to do?

Macsave Center Answer: Good afternoon, I need to diagnose, probably a software problem

breakdown of macbook A1181~ Yuri ~ 06-08-2015

Macsave Center Answer: Good afternoon, your system seems to have crashed, it needs to be either restored or reinstalled

MacBook ~ Igor ~ 07/09/2015

I have a MacBook, I installed Windows 7 on it, it crashed, I want to restore the Mac, I can’t

Macsave Center Answer: Good afternoon, windows installation 7 comes from your licensed disk and costs 1500 rubles

Resetting the login password in mac oc ~ Sergey ~ 06/15/2015

Good afternoon Doesn't accept the password when logging into the OS - the window shakes and resets the password, I tried to enter the wrong one, but the same thing happens, and it doesn't even write " wrong password". The reset, sleep and exit buttons do not work. I turned it off with the power button - it did not help. Everything happened unexpectedly - I left it open, it fell asleep and when I began to enter the password, the following story happened. What could it be?

Macsave Center Answer: Good afternoon. Just save everything via an external device and reinstall the OS

Doesn't hold charge without being connected to a power outlet (MacBook Air)~ Vitaly ~ 05/25/2015

Good afternoon. MacBook Air stopped charging after taking a bath in tea :). What is the reason? What to do? How much is it?

Macsave Center Answer: Good afternoon, you need to do diagnostics, maybe the problem may be in the power circuits on the motherboard

MacBook Pro retina 15 won't turn on ~ Ivan ~ 05/19/2015

Good afternoon Doesn't turn on MacBook retina 15 2012 Most likely something happened due to overvoltage. The heater was turned on in a nearby outlet when the beech was plugged in. After that, the beech stopped turning on, and where the heater was turned on, the surge protector burned out. The charge is intact, I checked it on another Mac. When you insert the charger into the Mac, the light on the charger does not light up, but if you insert it into another working Mac and then into my non-working one, it lights up orange! I would have sent it to your center for diagnosis and treatment a long time ago, but I am very far away, and in our city there is no apple service. What would you recommend?

Macsave Center Answer: Good afternoon, you clearly have a problem in the power supply circuits of the motherboard

MacBook Pro 15 (Late 2008)~ Dmitry ~ 05/16/2015

Hello, the insulation near the L-connector was peeling off, I decided to re-solder it - I crushed the LED and broke off a piece of the board when I tried to remove it. The Mac worked from the mains, but stopped charging the battery. I ordered a new cord with an L-connector, while waiting for the cord the battery discharged to 1-2%. I managed to turn off the Mac normally.
I soldered a new cord, plugged it in, the Mac won't start. I installed the battery and it started. But! The indicator on the L-connector DOES NOT LIGHT! (neither green nor orange) sinned on Chinese fake, I thought there was no LED there at all. The Mac works on mains power, sees the battery BUT does not charge. With the Mac running, I took out the battery, ran it for a while on mains power, then hooked it up and pulled out the plug. The Mac switched off and then stopped starting, either with or without the battery. I read that resetting the SMC can solve the startup problem. But when resetting, the Mac doesn’t react at all, the indicators are silent, and it still won’t start.
Since the battery was swollen, and then there was full discharge- Ordered a new A1281. PRAM/NVRAM reset after forced launch* (without battery). No changes either.
*(Disable MagSafe, hold Power for 5 seconds. Without releasing, connect MagSafe, hold Power for another 5 seconds, release, wait a couple of seconds, launch the Mac). The Mac started up forcibly, but with all the problems that arise, it is necessary to reset the SMC (Indicators-Fans-Lighting-Power).
A new battery arrived: the Mac started up forcibly*, but it says: No battery Power source: battery. (B-rr-rrrr)
I took the Mac (without battery), the charger and went to the neighboring city, found an Apple point. The seller had an Air with 60w, connected its Magsafe to mine - the indicator lit up green, but after 10 seconds it dimmed and soon went out completely (what the hell - I think that’s it! I burned the guy’s MagSafe), plugged it back into my Air - it works. My Mac wouldn't start due to lack of power. We took my 85w with a soldered new cord - L-conn. We inserted it into the Air and it lit up green!!! Hooray! The cord is still working. I put it back into mine and there is no reaction.
Results: replaced the cord with the L-connector, bought a new battery.
The Mac only starts forcibly, SMC is not reset. The LED on the plug does not light up. On the battery charge indicator, the 6th indicator is constantly shining, whether from the network or from the battery. I checked that power is supplied to the MagSafe board and from it to the Mother board in full. All contacts are called. Maybe there is some diagnostics that can be done at home besides (D-at startup), everything is clean there.

Macsave Center Answer: Good afternoon, everything clearly points to the motherboard power circuit. Only diagnostics at the service center will help

Poppy slows down ~ Alexander ~ 04/30/2015

Hello, my MacBook Pro 13 mid 12 suddenly started to slow down. Everything worked fine, I closed the lid, opened it about ten minutes later and that’s it: the response was 5-10 seconds to the action. I thought that the hard drive might have failed (I moved it to the same Mac - everything is fine there). I tried reinstalling the system and it still slows down.

Macsave Center Answer: Good afternoon, we need to do some diagnostics, the problem is unclear

MacBook Pro A-1278 Freezes~ Rustam ~ 04/03/2015

Good afternoon
The MacBook freezes very badly, it’s simply impossible work in Safe mode it works as it should, I reinstalled the OS, cleaned the heatsink there and there was no dust, changed the hard drive, changed the frame too, but nothing helps. Is it possible to get out of the standing graph of the card?

Macsave Center Answer: Good afternoon, we need to diagnose, problems can be in the north bridge and many other places

The sound and headphone output do not work ~ Ilya ~ 02/26/2015

suddenly the sound and headphone output stopped working, the sound sometimes disappeared and was distorted, but then everything suddenly stopped working, is this related to the system or technical problems, I didn’t drop my MacBook...

Macsave Center Answer: Good afternoon, I need to diagnose, perhaps the problem is in the connector, but perhaps in the codec

MacBook Pro A1278 won't turn on ~ Dmitry ~ 11/29/2014

Hello, please tell me what could be the problem:
The Mac stopped starting, namely, when you press the on button, the fan starts and after a while it emits one signal with a constant intensity every 3 seconds.
I changed the RAM, removed the hard drive, the CPU heats up within normal limits, I checked without a heatsink, the video card is the same.
I don’t understand what the signal means.

Macsave Center Answer: Good afternoon, I need to diagnose, the north bridge often flies on your models.

The macbook computer began to work very slowly ~ Maria ~ 09/29/2014

The computer began to work very slowly.
I regularly check my rights and disk. Please tell me what this could be? I really hope that the problem is not with the hardware.
Disk Utility says
Error: This drive must be recovered using Recovery HD. Restart your computer by holding down the Command and R buttons until Apple icon. When the OS X Utilities window appears, select Disk Utility. The Macintosh HD volume has become corrupted and needs to be repaired.

Thank you very much!

Macsave Center Answer: Good afternoon, you need to save your data and reinstall the operating system of your MacBook. The hard drive may well be failing.

MacBook won't turn on ~ Maria ~ 09/20/2014

The Macbook Pro does not turn on, but the fan is working (noisy), the power supply is new, and so is the battery. What is the reason?

Macsave Center Answer: Good evening, there can be many reasons for the lack of signal on the MacBook display, you need to do diagnostics, diagnostics in our center are free.

What to do with a MacBook if it refuses~ Evgeniy ~ 09/20/2014

Hello! macbook a1181 OS x 10.4.11 Skype stopped working, does not connect to the server, trying to install new version the program was not successful. On the Skype website it says that our operating system is no longer supported by Skype. What do you recommend...

Macsave Center Answer: Good evening, you need to update OSX, your Mac supports newer systems.

Spontaneous shutdown MacBook Pro Retina 2013~ Lucy ~ 01-09-2014

Hello. My MacBook Pro 13 Retina turns off as soon as I take my finger off the touch track. A sign appears asking you to turn it off. sleep mode, cancel and reboot. I click on cancel, put my finger on the touch track and then everything works. The power button does not work, you need to close the lid and open it again - the Mac turns on itself. I haven’t dropped it, haven’t spilled it, I use it carefully, the poppy is only 2 months old. What could it be..

Macsave Center Answer: Good afternoon, the problem may be either in the operating system or in the hardware. The retina touchpad is problematic. Come on over, we’ll do some diagnostics, and we’ll check it in front of you.

Macbook pro a1286 won't turn on ~ Grigore ~ 07/19/2014

Good afternoon, I have a MacBook ma348ll/a or 1175 15", the problem is that it does not start with RAM, and When I remove the RAM, the screen starts up but the screen does not turn on. Could it be the video card?

Macsave Center Answer: Good afternoon, in your case it may well be that the video chip has failed, this is very frequent breakdown MacBook A1286. But first we do diagnostics, because anything could break.

Good day! Please tell me, is it possible to “permanently” solve the problem of high CPU (250-300) and OP (above 1gb) load by the kernel_task process, or is it time for service?! I could not determine the cause of the appearance. Reinstalling OS X on a formatted HD did not bring the desired result, I temporarily solved the problem by deleting Plist with ID MacBookPro8_1, but after installation next update again a strong delay in system responses. Parameters: 2.3 GHz Intel Core i5, 8 GB 1600 MHz DDR3, Intel HD Graphics 3000 512 mb, Serial number C17F9GXMDH2G, OS X 10.9.3 (13D65). Thank you in advance for your response!

Macsave Center Answer: Good afternoon, the situation is strange, you need to diagnose the hardware, there are a number of reasons why such a problem may occur on a MacBook.

What about him? ~ Evgeniy Voevodin ~ 04/07/2014

Hello!
I have a macbook air 13 inches, mid 2012. OSX 10/9/2 The problem is the following: it works great, does not heat up, does not glitch, incl. under load, only if it boots. And it loads within a couple of hours - easily, maybe longer. First, the white screen lasts for 20-40 minutes, then the user’s choice, the same amount, slows down unrealistically, asterisks when entering a password are displayed with a delay of at least 5 seconds. But after that, when exiting sleep mode, there are no problems.
The problem is that I’m in Sevastopol, local technicians can’t advise anything except how to replace the motherboard, and they can’t do that either... I’m sitting here thinking about buying a new one, or is it some kind of typical problems for some reason specific problem with a certain final cost. Thank you!

Macsave Center Answer: Good afternoon, problems often occur in Hard drives SSD and cables on the MacBook motherboard could also fail south bridge. A full diagnosis is required.

Installing the operating system macbook a1181 ~ Stanislav ~ 03/17/2014

Good afternoon, I have the following problem, I will try to describe it step by step.
I have a macbook 1181, it was inherited, so to speak, the previous owner did not spare it much.
At some point the operating system stopped loading. After starting the laptop, an apple icon appeared and a rotating circle underneath it, then nothing happened, I tried leaving it overnight, and the same thing in the morning.
According to previous owner This has already happened to him, the operating system also crashed, this was solved by reinstalling it. Latest OS 10.7.4

When I try to reinstall the OS on the same 10.7.4, the system freezes while preparing for installation. I waited for several hours, no result.
I replaced the hard drive in the laptop, formatted it according to the instructions, tried to install OS 10.6.3, the same situation, it recorded in the last minutes of loading. At some point it just loaded, after which the screen went dark. I forcibly rebooted it and left it to boot from the hard drive, it spun (about 30 minutes) and played a melody, but the screen remained gray.
The last time I tried to reinstall the OS, the process froze about 30 minutes before completion (the screen worked, but did not respond to the touchpad).
I also tried changing the bootable USB flash drive, the result was the same.

Please tell me what could be the matter?

Macsave Center Answer: Good afternoon, this is often how problems with hard drive, the time has come to change the hard drive in your laptop because in the Mac A1181 during this time more than one hard drive has changed, as an option the north bridge may be, but this is rare.

goes out MacBook display Pro~ Evgeniy ~ 01/11/2014

Hello,
after a large glass of dry white wine, the laptop came back to life after a couple of days, however, when I launch Final Cut, Photoshop, VLC, the display goes blank.
Adobe Illustrator works with vectors; working with shadows also disables the display.
When examining the motherboard, no traces of flooding or corrosion were found.
Processor 2.4 GHz Intel Core i7, Intel graphics HD 3000 384 MB, OS X 10.8.5
What could it be?

Macsave Center Answer: Good afternoon, often such problems are associated with video memory and video card, but in your case you need to do detailed and lengthy diagnostics since it most likely flooded under the chips.

Small MacBook 11 screen does not work ~ Yana ~ 09-10-2013

Hello, I have an Apple Air 11 screen on the bottom that says MD508. Help me fix my baby, I turn it on with a button, but it doesn’t give any life signals, everything is silent and the screen doesn’t light up, as I understand it, I need to do diagnostics?

Macsave Center Answer: Good afternoon, there may be a problem with the MacBook’s power connector or a power problem on the motherboard, we’ll do diagnostics within a day and tell you what the problem is on your Aira.

As you know, Apple pays a lot of attention to organization Maintenance and repairing your devices... while they are under warranty. If guarantee period for your MacBook is out, then its repair can cost a significant amount of money. You may be charged several hundred dollars for some minor problem.

Therefore, let's look at those problems that we can fix ourselves. Here I have collected all important information DIY MacBook repair. It will also be useful to users desktop computers Mac.

Before you begin: Backup

If your MacBook has started to have problems and you are planning to deal with them, then before moving on to active actions, create backup copy all important information.

I hope you already know how to use Time Machine. Use this utility to create a copy of your Mac on external storage or online storage. Great, let's start troubleshooting the MacBook and fixing it.

1. Download updates and check for viruses

In the first step, make sure that the latest versions of the software are installed on your computer. Download the most latest updates operating system, applications, component firmware... absolutely everything. Run App Store and go to the “Updates” section. If for some software product The update is ready - install it.

If you installed some programs not through the App Store, then run each of them separately and check if they are ready to update.

After updating the programs, run anti-virus scan(after updating your antivirus) to make sure there are no viruses or other malware that could cause problems with your computer. You can also use a program to search for and remove adware, such as Adware Mdic. Just don't use MacKeeper for this.

Many users still live in the dark and believe that viruses do not threaten Macs. But the situation has long since changed, and unwanted programs that display advertisements can easily get installed on your system.

After updating and checking for viruses, restart your computer. It is possible that it will work without problems.

2. MacBook diagnostics

If the problem persists on your Mac, you need to find out its source. First you need to decide on the category of the problem: software or hardware. To check the hardware you need to run Apple Diagnostics (or Apple Hardware Test, depending on the age of your computer). To do this, we will use the following algorithm:

Turn off your MacBook and disconnect all peripherals from it (except the network adapter, mouse, keyboard, and Ethernet connector).
Hold down the D key until Apple Diagnostics starts loading.
Select your language and press the Enter button.
If your Mac was released before 2013, then select “Perform extended testing” and click “Test”.

The procedure for diagnosing the computer hardware will begin. This may take a while - be patient. At the end of the diagnostics, a table with information about the found hardware problems will appear on the screen. Write all this down somewhere and restart your computer.

Using OS X's built-in Disk Utility ( Disk Utility) you can find a number of problems associated with file system, especially if they are related to access rights.

If these diagnostic tools do not find anything, then you will have to use an alternative method. Study “Localizing problems in Mac OS X” - in this Apple document I've collected some practical tips to help you find the source of your computer problems. Once you find it, you may be able to figure out your next strategy. MacBook repair or you will have to look for relevant information on thematic forums.

If you still don't know how to restore full functionality to your Mac, read on.

3. Problematic programs

Let's start with what is simpler. As a rule, problems with software are solved cheaper and faster.

Correcting access rights

Incorrect permissions often create problems that are difficult to explain. Correcting them in many cases allows you to quickly solve seemingly impossible problems. complex problems. Launch Disk Utility (Applications -> Other) and click the “Check permissions” button.

The utility will almost certainly find several objects whose access rights it will recommend correcting. After it completes its work, click the “Correct access rights” button. If the list of fixes is large enough, this procedure will take several minutes. You can relax and have a cup of coffee for now.

Resetting PRAM and SMC

Random access memory to which you write system parameters(PRAM) and system management controller (SMC) are responsible for many important things on your Mac. To reset PRAM do the following:

Turn off your computer.
Press the computer's power button.
Before the appearance gray screen Press the Command, Option, P, and R buttons simultaneously.
Hold these buttons until you hear the computer boot sound again.
Now release the buttons.

Resetting the SMC depends on the type of computer you are using. On a MacBook with a removable battery:

Turn off your computer.
Disable network adapter nutrition.
Remove the battery.
Press and hold the Power button for five seconds.
Reinsert the battery.
Turn on your computer.

On a MacBook with a non-removable battery:

Turn off your computer.
Connect the AC power adapter.
On the built-in keyboard, press the Shift, Control, and Option buttons on the left and the Power button at the same time.
Release Shift, Control and Option at the same time.
Turn on your computer.

On Mac Pro, iMac with Intel processor, Mac Mini with Intel or Xserve on Intel:

Turn off your computer.
Unplug the power cord.
Wait fifteen seconds.
Connect the power cord.
Turn on your computer.

Removing problematic programs

If you still can't get your MacBook to work properly, and you suspect a particular program is causing problems, then try uninstalling it and see if your computer works better after that. If this is exactly what happened, try installing this program again. Sometimes that's all you need to do to repair your MacBook. If problems persist, then try a few more things.

Reinstalling OS X

We are moving to decisive measures. Sometimes a serious problem arises in the operating system, which can only be fixed by reinstalling it. That's why you backed up your Mac at the beginning of the article.

If you have OS X Yosemite installed (you've already updated your Mac), proceed as follows:

Restart your MacBook.
When you see a gray screen, press and hold Command + R.
Options should appear, from which select “Install OS X”.
Follow the instructions on the screen.
The operating system will be reinstalled. See if the problem goes away.

4. Hardware problems

If your MacBook has a hardware problem and you want to fix it yourself, you will have to use online resources filled with useful information. Apple Information Diagnostics or Apple Hardware Test should be the starting point (of course, if this utility has started and the computer display is working). Sometimes diagnosing hardware problems can be very difficult and will require professional skills and tools.

Collecting information

Before you begin repairing your MacBook hardware, you should be well prepared and assembled. necessary information. There are quite a lot of resources on the Internet about repairing Macs. I recommend starting with iFixIt, Instructables and YouTube. Before disassembling the MacBook case, carefully read or watch the instructions and make sure you have everything you need.

MacBook Repair Tools

Unfortunately, to repair Apple laptops you will need tools that are not included in the traditional home kit. In the iFixIt online store and at local hardware markets you can find almost everything you need: clever screwdrivers, soldering tools and special kits.

You can also search Amazon and eBay for the repair tools you need. In the latter case, the prices may pleasantly surprise you (but delivery will most likely cost a pretty penny). Used tools are unlikely to lose their functionality after repairing one or two computers.

Where to get spare parts

On eBay you can find not only tools, but also spare parts for MacBooks: from motherboards to displays. You can also buy a faulty Mac inexpensively, in which we will find many working parts for repair. iFixIt also sells Mac parts.

Before buying, check a hundred times that this is exactly the part you need. Protect yourself from incompatibility problems. If you are not sure what exactly this part is called, on your MacBook go to the Apple Menu (in the left top corner screen) –> About This Mac –> System Report and find the description there required component(of course, if the computer turns on).

Get to work!

If you know what needs to be done, you have prepared the tools and necessary spare parts, then it’s time to start repairing your MacBook. Reread necessary instructions. Protect yourself from possible impact electric shock and get started.

Be patient. Repair modern computer- a very delicate task, there are many small and fragile parts, and some of them can be irrevocably damaged by a discharge of static electricity. Be extremely careful when working with batteries and microcircuits.

Or maybe to a service center?

Fixing a MacBook takes time, patience, and sometimes a lot of money - but it results in the return of the computer's functionality and increased self-esteem.

I recommend undertaking serious repairs only if you like to delve into the inside of electronic devices. Having solved serious hardware problems with Macs several times, you will move to a select group.

But for most of us, serious Mac repairs should be left to a properly trained professional. You can try to take the relevant courses yourself. But they are unlikely to seem simple to you. Therefore, most users entrust the repair of their MacBook to professionals. Yes, you will pay more money, but you will receive qualified help.

In what situation are you ready to repair your computer yourself? And when would you prefer to entrust its repair to a qualified person? Share your opinion in the comments.

One of the most simple ways Find out if your Mac has hardware problems by running the Apple Hardware Test or Apple Diagnostics. Yes, most users of Apple equipment do not encounter any malfunctions, but problems sometimes arise: drive damage, memory failure, unstable work graphics or motherboard. There are many different types of defects hardware.

The good news is that the Apple Hardware Functional Test allows you to special effort determine the presence of a hardware failure. It's worth keeping in mind that the Apple Hardware Functional Test can only be run on devices released before June 2013. On newer models, Apple Diagnostics is loaded.

The programs are slightly different, but their functionality is the same. Equipment testing is the same for everyone Apple computers Whether it's an iMac, MacBook, MacBook Pro, MacBook Air, Mac mini or Mac Pro, the operating system version doesn't matter either.

How to diagnose your Mac hardware:

Step 1: Connect your Mac to a power source.

Step 2: Disconnect all external devices except the display, keyboard and mouse.

Step 3: Turn off your Mac and press the power button again to turn on your computer.

Step 4: Press and hold the "D" key on your keyboard until the gray loading screen* appears.

Continue holding "D" until a progress bar appears instead regular screen downloads.

If your Mac boots into Apple Hardware Test mode, an icon will appear on the screen.

If your Mac loads Apple Diagnostics, you'll see a progress bar or language selection screen.

Step 5: For "Hardware Functional Test", check the "Perform Advanced Test" checkbox and click "Test". For Apple Diagnostics, wait for your Mac to complete its scan.

The diagnostic tool will notify you of any faults found.

If any error is detected, then your Mac has hardware problems.
If no errors are found, the computer hardware is working properly and there are most likely problems in software. In this case, you should back up your data and reinstall Mac OS X.

*If you're having trouble downloading Apple Diagnostics, press Option + D to download the test online.

If a malfunction is detected during the test, write down the error code and other details shown on the monitor. This will help you when contacting technical support. For Mac computers with Apple Diagnostics on support.apple.com.

The example below shows that the "Apple Hardware Functional Test" detected a problem with SATA interface and gave an error code: “4HDD /11/40000000: SATA(0,0)”. It means hard drive malfunction disk.

If you're having problems with your Mac while it's still under warranty, you should contact an Apple representative. Some errors can be eliminated by yourself by replacing the RAM or hard drive, but if the case is under warranty, there is no need to worry, since a certified service technician apple center obliged to fulfill free repair computer.

If your warranty has expired, you can try to fix the problem yourself, but this method is only suitable for tech-savvy users.

It is very easy to distinguish a hardware fault from a software one. A problem with damaged hardware cannot be fixed by reinstalling the operating system, while a problem with software will most likely go away. It is also worth keeping in mind that some software itself does not work correctly and such problems only appear when using a specific application.

Taking into account the fact that smart guys are increasingly offering to buy a brand new MacBook at a very good price, I decided to write this text. In it, I will tell you how to understand exactly what you are buying with your hard-earned money.

Quite often in Lately They called me and asked what was going on with their brand new MacBook. In some cases, a rather interesting, but no less sad precedent for the owner took place. Most often there was such a situation - the victim was looking for where to buy a brand new MacBook cheaper. Of course, last but not least, the search took place at flea markets like Avito. There was a salesman there offering top laptop at a price much lower than our official retail price. During the initial examination, everything was as it should be. The laptop was packed, in film, when opening the cloth lay on the keyboard as it should. Opening the “About this Mac” window also showed the maximum configuration. The happy buyer gave his money and went home reassured. But it was not there…
In fact, the configuration turned out to be far from the one that the unlucky comrade bought. In all cases, these were the cheapest Macs. The guys simply deceived the system and wrote what is installed in the maximum configuration. I won’t explain how this is done, I’ll just say that it’s a matter of 10-15 minutes. And your dead MacBook turns into an ultra-modern monster... But fortunately, there is a way to make sure and see exactly what you are giving your money for. He is the only one whose result cannot be influenced in any way.

I think some have heard about such a thing as Apple Hardware Test. Apple service technicians need it to diagnose the problem. But it can also serve us very well. good service. All that is required for this is to press the D button when loading (in some cases Cmd+D). Then we find ourselves in such a window. Russian language is also available. Click next.

This is where all the information about the laptop hardware is available to us.
Moving through the tabs, we can see the section we are interested in: (Interestingly, on my MacBook Pro, Retina shows the screen resolution that is currently specified in the settings, and not the actual 2800x1800 pixels.)

You can immediately click the “Test” button and check that the computer’s hardware is in order. During the test, the coolers accelerate to maximum speed for a while, there is nothing to be afraid of.

After completing the test, you will be given an answer whether it is worth transferring money to the seller.