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Apple hardware test does not start. How to use Apple Diagnostics. Reinstalling OS X

Determining the cause of the malfunction is the very first thing you need to start with. MacBook repair. 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, HDD, 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 exclude software glitch, the cause of the problem may lie in connected but malfunctioning equipment. 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 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 has been damaged, or Charger, 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.

Disassembling an Apple laptop is 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 Beech 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 force close all open programs 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 making 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 CPU test, the temperature jumped to 100 degrees in a few seconds. 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 an 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 as before! 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 in this case The battery needs to be replaced! 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 (motherboard power circuit/ 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 exiting hibernation mode in Win7 Boot Camp~ Vitaly ~ 06/17/2016

Hello, I own a MacBook Pro 15 Late 2013, the hard drive was recently replaced at a service center, upon its return the laptop stopped coming out of hibernation mode, it just hangs with a black screen, I tried everything I found on the Internet on this topic, rolled back the drivers, disabled various features in nothing helped in power supply modes. 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 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 fail, I restored it from previous version, but the spacebar key 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, the sound turns on, then the apple appears and in a circle it loads on a gray screen, after which the wheel loading 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:

On my Mac over 20GB free space, but in recent days, as soon as I turn on my Mac and the memory melts in a matter of minutes, it displays a message that boot disk is full, requires you to close all programs (and closes them yourself) 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. Absolutely randomly. I carried out diagnostics using the laptop itself, it says that the battery requires servicing. 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? The standard disk diagnostic utility 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? macbook diagnostics 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 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 ~ 09-07-2015

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 yours licensed disk and costs 1500r

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

Good afternoon MacBook retina 15 2012 won't turn on. 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 Mac, 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) I thought it was a Chinese counterfeit, I thought there was no LED 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 was forced to start, but with all the problems that arise, it is necessary to reset the SMC (Indicators-Fans-Lighting-Power).
Arrived new battery: 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 the headphone output stopped working, the sound sometimes disappeared and was distorted, but then everything suddenly stopped working, this was due to the system or technical problems, the MacBook did not drop...

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.

Computer macbook 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 the Apple icon appears. 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 it 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 a very common breakdown of MacBooks A1286. But first we do diagnostics, because anything could break.

Good day! Please tell me if it is possible to solve the problem “permanently” high load CPU (250-300) and op (above 1gb) 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 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 blank. 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, problems with the hard drive often manifest themselves this way. It’s time 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, much less 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.

If there are any unusual problems related to the technical component, you can use the program Apple Diagnostics to find out their causes and even fix them.

Diagnostics Apple will run several tests to identify problems related not to the system, but to the device itself. It could be a broken port, a bad battery, problems with the display, or anything like that.

This program is essentially reincarnation Apple programs Hardware Test. Apple Diagnostics is designed for new Macs, and 2013 and older models use Apple Hardware Test. The old program displays more information, and Diagnostics is more concise. However, both programs work the same and are great for identifying and solving problems with Mac parts.

Opening Apple Diagnostics on a Mac is as simple as pressing a keyboard shortcut at startup. More about this later.

How to open DiagnosticsApple onMac


Many different messages may appear about various problems. If you don't know what to do, you can contact the service Apple support or contact a specialist.

Please note that Apple Diagnostics may not detect all problems, and in this case, the only thing you can do is immediately seek help from a specialist. Such problems include cases when the computer periodically does not start or, on the contrary, turns off by itself. Also, the program will not detect physical damage to the device, including damage from contact with liquids.

Apple Diagnostics isn't perfect, but it's a good place to start solving any problems. technical problems with Mac, iMac, MacBook, MacBook Pro and other models.

Launch DiagnosticsApplethrough Internet

You can also launch Apple Diagnostics over the Internet by holding down Option + D during startup. The process will take longer, and there will be no more differences with the previous way No.

What to do with Diagnostic CodesApple?

If the program finds a problem, it will give you the code and short description. More information can be obtained by checking the code on the Apple Reference Codes site. There you will learn more details about your problem.

How else to solve technical problems

Apple Diagnostics is very useful, but it won't solve every problem. You can try the following.

It's good when the Mac works like a clock. But this doesn't last forever. Being seasoned Mac users, we carry the same laptop with us for many years in a row, changing it to a new one only in exceptional situations. For example, if problems arise with hardware - overheating and loss of OS stability. To prevent or correct this, it is worth carrying out maintenance.

It’s time for me to write a book about how to most successfully get into seemingly insoluble situations. Quite recently, I wrote about how I found myself in a hopeless situation with a burnt-out cable, which forced me to urgently look for a laptop repair service. The current situation is little better.

I came to Moscow for a few days on a working visit right before spring presentation Apple Watch. That evening the work process was in full swing, and posts poured in one after another. Finishing work on the next news, I noticed: the laptop began to behave strangely. It had been unusually hot for several days now and the coolers were loudly humming. And now the system froze every now and then, although nothing resource-intensive was happening.

In the morning, everything got really bad: after a short run on the Internet, the computer suddenly turned off. To the touch - simply fiery. Nikita and I were going to check out iCases on Taganka the next day, and, in addition to the planned things, we decided to take my Mac for diagnostics at the same time. There's nothing to lose.

A master named Igor took my working tool and took it to the holy of holies of any repair service. While Nikita was picking up gadgets for the next batch of reviews, I also decided to look inside my own laptop.

The first thing the master asked was how long ago I carried out prevention. To be honest, I was taken aback and answered negatively. For some reason I was sure that the problem with the laptop was purely software. After all, I never dropped it, never flooded it, and generally tried to treat it with care. Igor smiled indulgently and began to unscrew the screws.

First, he cleaned vent MacBook. If anything, it is located between the rotating display mechanism and the main part of the body. It was thoroughly packed: probably because I like to take the laptop to bed, I often leave it on the bed and under the “sheep’s” blanket.

Secondly, the technician removed dust from the cooler - the fan next to the Mac processor. The fact is that clogged ventilation grids lead to overheating of the laptop and malfunctions in its operation. Which is exactly what I encountered.

The entire cleaning procedure took about half an hour. He managed to blow out the grilles, clean the dust from the fan, change thermal paste and remove the “traces” of the ginger cat living in my house. And then, most of the time we talked, discussing the presentation that took place the day before.

  • Make sure that the air intake and exhaust grilles are open.
  • Feel free to give your laptop for cleaning, especially if you like to eat on it;)
  • If your Mac is more than two years old, install software to check the processor temperature.

    • A selection of programs for checking Mac temperature:

    1.Temperature Gauge


    2. Magican Paster

    3. SensorX

    If the temperature at rest and minimal load rises above 40-45 degrees, the laptop must be urgently taken to service - save.

    Taking care of yourself should come from taking care of your gadgets. Replacing thermal paste, cleaning coolers and air vents not only reduces the temperature of your knees, but also extends laptop life. Don't learn from my mistakes. Avoid them.

    Where to carry

    IN iCases.ru We are ready to carry out the same procedure for your MacBook - for only 2490 rubles. If you say that you came on a recommendation website, they will do it for you nice 10% discount! It’s already inexpensive, but the benefits are tangible.

    Comment iCases.ru

    Dear readers, we would like to thank you for your such interest in our article! Judging by the reviews, every day we will have more and more more clients! Why? It's simple!

    None of you in the comments, dear “experts,” guessed right. The brand's thermal paste was used in the review Mx-2 from a Swiss manufacturer Arctic Cooling, packaged in a 20 ml syringe. and net weight 65g. Thanks to this, an accurate dosage is ensured - 0.05 ml/cm2 (the syringe is equipped with a scale, it is convenient to control). In the photo under discussion, no more than 0.15 g was applied to the mirror surface of the chip with an area of ​​1.5 cm2 (1.5 x 1 cm). thermal paste - since this is an Intel Core i5 processor. With a viscosity of 85 Pa*s, this is approximately equal to ketchup: it gives strong spreading over the mirror plane of the chip.

    After grinding the heat sink to the crystal and under the pressing action of the heat sink and radiator fastening mechanisms, the paste is squeezed out over the edge of the crystal (not prohibited, since this type of paste is a dielectric). The layer between them remains about 1/60 mm. The rim of the extruded paste serves additional heat conductor between the copper heat sink and the distribution part of the processor. The rim around the crystal also prevents the paste from drying out on the crystal (if anyone didn’t know, it dries from the edge to the center).

    So the more thermal paste the better, unless of course it is expired and thickened! We remove the old thermal paste with an alcohol-soaked cotton swab, and a careful scraping with tweezers from the crystal was done for the sake of a review photograph in order to show you the dried thermal paste from the factory. The laptop is only 4 years old! (This is Air 11” 2011 i5/4gb)

    And for the future – guys, don’t be a little lazy first explore the topic deeper;) 


    We are happy to welcome you to our service centers! Judging by those specialists who they were very smart in the comments, we will have a lot of work. The services where they work should be ashamed that they have such employees!

    To all our readers 10% discount! With love, Igor!

    P.S.: More details about the characteristics:

    Please rate.

    One of the easiest ways to find out if you have Mac problems with hardware - run the Apple Hardware Functional 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. Hardware testing is the same on all Apple computers, be it iMac, MacBook, MacBook Pro, MacBook Air, Mac mini or Mac Pro, the operating system version also does not matter.

    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 have problems with Apple download 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)”. This means the hard drive is faulty.


    If you are having problems with your Mac and guarantee period has not yet expired, you should contact your Apple representative. Some errors can be eliminated by replacing them yourself. random access memory or hard drive, but if the case is under warranty, there is no need to worry, since a certified service 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.

    Any device, regardless of its complexity, requires a preventive inspection from time to time in order to promptly track emerging problems, eliminate them in time at their inception stage and prevent their reoccurrence. Despite the fact that Macs (both desktop and mobile) are famous for their reliability, they should also undergo preventative maintenance from time to time. Mac OS X contains many various settings and temporary elements, both at the software and hardware levels, which can affect the operation of the system as a whole and individual applications. We will talk about this in today's article.

    We would like to warn you right away that not all of the tips below should be used in any case - some of them are recommended to be used only in case of obvious problems.

    IRON PREVENTION

    Preventive maintenance of hardware by the user involves working with PRAM and PMU settings, disk boot volume data and partition table structure. If you have the proper user skill and experience in assembling and disassembling your Mac, you should regularly clean its insides from dust.

    • Checking the primary disk partition

    We reboot the computer, but boot not as usual, but from a recovery disk or from any other boot volume (installation DVD, backup copy main section, etc.). During boot process (when using installation DVD) or after full load, launch Disk Utility and, having selected the main partition with the system in it, we check the disk to find out if everything is in order with the structure file system disk. The same check can be done by booting in normal mode, but if you boot from another medium, the effectiveness of the check will be slightly higher.

    • Apple Hardware Test

    For any Mac, there is also an official tool for testing hardware for errors. It's called Apple Hardware Test and can be found in a variety of places:

    • on the Mac OS X installation disc that came with your Mac (if you bought it with Leopard 10.5.4 or older)
    • on the software disk that came with the Mac (if Mac OS X 10.5.5-10.6.8 was pre-installed on the Mac)
    • on the Recovery partition or even on the Internet (if the Mac was sold with OS X Lion)

    Depending on the Mac models, the way you run the test may vary. As a rule, to enter the test you need to hold down the D key when turning it on (not when rebooting!). If Apple Hardware Test is located on the Recovery partition of the disk, then use the Command+D combination.

    If the D key doesn't change anything, try inserting the disks your Mac came with into the drive and holding it down when the computer turns on with a DVD in the drive.

    If Apple Hardware Test finds any errors, it will be very important to remember (or better yet, write down) their codes. This will be useful to you when communicating with technical support.

    If there is no other medium from which to boot, there is no need to bother with Disk utility If you don’t want to either, you can boot your Mac in safe mode. This mode The good thing is that, among other things, with such a start, several system maintenance procedures will be launched and the disk will be forced to check for errors. In order to boot the original Mac in safe mode, the user just needs to hold down the key while booting. SHIFT , in case of using Hackintosh - boot with the flag -x .

    • Resetting PRAM

    PRAM is a parametric random access memory device that stores some operating system and device settings to provide Mac OS X with fast access to them. The number and name of settings varies depending on the type of computer, as well as the devices and drives connected to it. But almost always, video and monitor settings are stored there (refresh rate and screen resolution, number of colors and some others), information about the starting disk volume, set speaker volume, data about the last kernel panic.

    In some cases, clearing PRAM helps to cope with certain problems that have arisen. To clear PRAM, just hold down the keys when starting the computer COMMAND+OPTION+P+R (you need to press them before the gray screen appears) and do not release until the Mac boots up and you hear the Mac OS X welcome sound.

    If you have a RAID array installed on your Mac, it may happen that after resetting the PRAM, the computer will refuse to boot correctly. In this case, you should try to boot while holding down the key OPTION to the screen for selecting a system to launch, and if this does not help, then restart the Mac by holding down the keys COMMAND+OPTION+SHIFT+DELETE .

    • Reset SMC

    An SMC module is a computer chip that is usually found on the motherboard and is responsible for managing all aspects of the computer's power supply. He controls the speed rotation of hard disk, turning sleep mode on and off, charging and the effect of connected devices on sleep mode. If you have problems with sleep mode, the inability to turn on the computer when running on battery power, and other power-related problems, then resetting the SMC settings can help solve them. For different Macs, the SMC reset process is slightly different, so to get reset instructions specifically for your Mac, we refer you to the Apple knowledge base, where everything is described in detail. As an example, here is the procedure for resetting the SMC for the MacBook Air and Mac Mini.

    1. Turn off your MacBook and disconnect all cables from it.
    2. Connect the network adapter cable to it.
    3. Press and hold the keys CONTROL+SHIFT+OPTION on the left side of the keyboard (that's right), and then press and hold the power button.
    4. After 5 seconds, release all buttons and press the power button again.

    1. Disconnect all cables from the computer, including the power cord.
    2. Wait 10 seconds.
    3. Plug in the power cord while holding down the power button on the back of the computer.
    4. Release the Power button.
    5. Turn on your computer by pressing the power button again.
    • Cleaning your Mac from dust

    This procedure requires some experience and practice in disassembling and reassembling a Mac. Despite its apparent complexity, surgery can significantly help in the fight against insufficient cooling computer case and components, because the Mac, like any other electronic equipment, is an excellent dust collector. Of course, not every Mac can be easily disassembled. You can find out how this is done and how difficult it is on the iFixit portal.

    However, if you are not confident enough in your abilities, then it is better to clean your Mac from dust at a service center.

    PREVENTION OF THE SYSTEM

    System prevention comes down to checking the status of rights to files and folders, clearing various caches and removing other garbage.

    • Verification and restoration of rights

    It may be quite useful to check and, if necessary, restore access rights to files and folders. To do this, boot in normal mode from the main boot partition and launch again Disk Utility, in which we perform the above operations.

    • Extraordinary launch of the Mac OS X self-cleaning system

    Mac OS X is enough smart system and it has a built-in self-cleaning system that independently cleans various temporary files and other garbage. Everything would be fine, but there is one problem - the self-cleaning system starts at strictly defined hours, when the computers of Russian users, as luck would have it, are turned off. About how to solve this problem and independently start the self-cleaning process in detail in one of our articles devoted to working with the Terminal.

    • Cleaning extensions and system cache in Mac OS X

    At possible problems Cleaning system extensions can help with drivers, and clearing the system cache will help the system “breathe” more freely. Behind detailed description cleaning process also refer you to the above-mentioned article on working with the Terminal.

    The final finishing touch to prevent the operating system is to restart the computer. Don't be surprised if your Mac takes too long to boot the first time after cleaning - this is normal. Reboot the machine again and it will boot normally.

    Alternatively, to prevent the system, you can use various specialized applications that significantly facilitate this process and eliminate the need for operations with Terminal, Disk Utility and other applications that frighten newcomers. We have already talked more than once on the pages of our website about similar programs, for example, or.

    Keep your Mac in order, take care of it regularly and it will repay you with many years of impeccable work;)