If you have erased or replaced your Mac's startup drive, you will probably need to use the Apple Hardware Test over the internet. OS X For Macs that were sold with OS X It's not uncommon for the optical media or USB flash drive to become misplaced over time. And of course, you won't notice that they're missing until you need them. If you find yourself in this situation, you have two basic choices. You can give Apple a call and order a replacement disk set.
You'll need your Mac's serial number; here's how to find it:. Once you have the serial number, you can call Apple support at APL-CARE or use the online support system to initiate a request for replacement media.
Fix Mac hardware problems after running Apple Diagnostics
They should be able to run the AHT for you, as well as help diagnose any issues you're having. Once you finish using the Apple Hardware Test, you can quit the test by clicking either the Restart or Shut Down button. The error codes generated by the Apple Hardware Test tend to be cryptic at best, and are meant for Apple service technicians. Many of the error codes have become well known, however, and the following list should be helpful:.
Most of the above error codes indicate a failure of the related component and may require having a technician look at your Mac, to determine the cause and the cost for a repair.
This can be helpful for some errors, including logic board and fan problems. You can perform additional troubleshooting for memory RAM , hard disk , and external disk problems. In the case of a drive, whether internal or external, you can try to repair it using Disk Utility which is included with OS X , or a third-party app, such as Drive Genius. If you still have memory issues, you may need to replace the RAM. Share Pin Email. Tom Nelson has written hundreds of articles, tutorials, and reviews for Other World Computing and About.
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He is the president of Coyote Moon, Inc. Updated November 01, You'll need your Mac's serial number; here's how to find it: From the Apple menu, select About This Mac.
- Use the Apple Hardware Test (AHT) to Find Problems;
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We also updated to Mojave and swapped logic boards with the same results. Apple has introduced software locks that will effectively prevent independent and third-party repair on MacBook Pro computers, according to internal Apple documents obtained by Motherboard. On iMac Pros, it will kick in if the Logic Board or flash storage are replaced.
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MacRumors reported the new policy earlier today. Are you an Apple Authorized Service Provider or an independent repair professional who will be affected?
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- How to Perform Apple Diagnostics to Uncover and Fix Hardware Problems.
- Apple's New Proprietary Software Locks Will Kill Independent Repair on New MacBook Pros!
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- Fix Mac hardware problems after running Apple Diagnostics;
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You can reach the reporter via email at jason. Luckily, Apple has once again made it extremely easy for end users to determine which version of the hardware utility to use or how to make sense of error messages and alerts displayed by Apple Hardware Test.
Apple Service diagnostic 2.6.3
Share your experience in the discussion thread below. Get to the core of all Apple information by automatically subscribing to TechRepublic's Apple in the Enterprise newsletter. He brings 19 years of experience and multiple certifications from seve He brings 19 years of experience and multiple certifications from several vendors, including Apple and CompTIA.
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