Full diagnostics of your MacBook can only be done at a service center. Testing your Mac with AHT or Apple Diagnostics. On which Macs which utility?
Today there are quite a lot of utilities for testing and diagnostics. personal computers. Moreover, not all of them are created only for troubleshooting. Some of existing applications help identify “weak” areas and can even provide a number of useful tips. A utility called TechTool Pro applies specifically to these.
TechTool Pro is a fairly popular testing utility apple computer, which is different wide possibilities and a pleasant interface. Thanks to this, it can be used by both beginners and advanced users.
One of the main tasks of TechTool Pro is hard testing Mac drive. The utility allows you to scan drives for bad partitions, restore access rights, perform SMART tests, and clone volumes.
However, TechTool Pro's capabilities in condition monitoring hard drive don't end. This application also allows you to test other components of your Apple computer. For example, check the operation of coolers, random access memory, monitor, etc.
To summarize, we can say that TechTool Pro is a powerful application that can replace an entire arsenal diagnostic programs. But this utility has one significant drawback - the price. Latest version programs will cost $99.99. You can purchase TechTool at.
One of the most simple ways find out if you have Mac problems with equipment – run “Functional test Apple equipment» or Apple Diagnostics. Yes, most users Apple technology 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, version operating system also doesn't matter.
How to diagnose your Mac hardware:
Step 1: Connect your Mac to a power source.
Step 2: Disable everything external devices excluding 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 gray screen downloads*.
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 do backup 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, support.apple.com has .
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 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 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.
Yesterday we, which allows you to diagnose hardware problems with Mac computers released before June 2013. But if your device is older, ANT will no longer run on it: instead, the computer will use the Apple Diagnostics program.
In fact, both programs are not much different from each other. Is it possible that Hardware Test has a simpler and older interface, while Apple Diagnostics has a new “flat” interface? stylish design. In addition, the latter is adapted to latest computers Apple both diagnoses and recognizes problems with your computer's internal hardware components, such as motherboard, memory and devices wireless communication.
If you think your Mac has hardware problems, there are convenient way check it out.
To begin, turn off your computer and then turn it on while holding down the D key until the Apple Diagnostics loading screen appears.
After that, select a language - this will make it easier to work with the program.
The basic test takes two to three minutes. If no problems are found, you will see a corresponding message. But if there are problems, the system will not only find them, but will also describe in detail what the problem may be, and for some problems it will offer solutions before contacting the service center.
Under every error you will find it unique code- if the problem is serious, it is better not to self-medicate. For warranty computers, you need to contact, tell her the error code, after which specialists will tell you what to do next. Don't despair if your Mac is no longer under warranty - they usually know all the error codes and will be able to tell you right away how much repairs might cost.
To exit Apple Diagnostics, turn off your computer. If you want to immediately contact the company’s support, click “Get started”.
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 people 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, in my MacBook Pro Retina shows the screen resolution, which is this moment specified in the settings, 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. 
That's all, I hope this small guide will save you from wasting your hard-earned money on something unknown.
Fair, not overpriced and not underestimated. There should be prices on the Service website. Necessarily! without asterisks, clear and detailed, where technically possible - as accurate and conclusive as possible.
If spare parts are available, up to 85% of complex repairs can be completed in 1-2 days. Modular repairs require much less time. The website shows the approximate duration of any repair.
Warranty and responsibility
A guarantee must be given for any repairs. Everything is described on the website and in the documents. The guarantee is self-confidence and respect for you. A 3-6 month warranty is good and sufficient. It is needed to check quality and hidden defects that cannot be detected immediately. You see honest and realistic terms (not 3 years), you can be sure that they will help you.
Half the battle is Apple repair- this is the quality and reliability of spare parts, so good service works with suppliers directly, there are always several reliable channels and your own warehouse with proven spare parts current models so that you don't have to waste extra time.
Free diagnostics
This is very important and has already become a rule of good manners for the service center. Diagnosis is the most difficult and an important part repair, but you do not have to pay a penny for it, even if you do not repair the device as a result of it.
Service repairs and delivery
Good service values your time, so he offers free shipping. And for the same reason, repairs are carried out only in the workshop of a service center: they can be done correctly and according to technology only in a prepared place.
Convenient schedule
If the Service works for you, and not for itself, then it is always open! absolutely. The schedule should be convenient to fit in before and after work. Good service works on weekends and holidays. We are waiting for you and working on your devices every day: 9:00 - 21:00
The reputation of professionals consists of several points
Company age and experience
Reliable and experienced service have known for a long time.
If a company has been on the market for many years and has managed to establish itself as an expert, people turn to it, write about it, and recommend it. We know what we are talking about, since 98% of incoming devices in the service center are restored.
Other service centers trust us and refer complex cases to us.
How many masters in areas
If there are always several engineers waiting for you for each type of equipment, you can be sure:
1. there will be no queue (or it will be minimal) - your device will be taken care of right away.
2. you give to Macbook repair an expert in the field Mac repairs. He knows all the secrets of these devices
Technical literacy
If you ask a question, a specialist should answer it as accurately as possible.
So that you can imagine what exactly you need.
They will try to solve the problem. In most cases, from the description you can understand what happened and how to fix the problem.
