Questions tagged [apple-diagnostics]

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What is wrong with this MacBook Air (2015)?

I was donated a MacBook Air 2015 by a friend, and told that the screen didn't work but an external display was fine. Now I have had a closer look, and the screen is black but the machine works fine ...
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1answer
1k views

What exactly is meant by PPM002, PPM003, PPM004?

My Macbook Pro's Apple Diagnostics currently reports PPM002, PPM003 and PPM004 error codes, which are associated with the on-board memory. Apple's page on this topic is not illuminating. Is there a ...
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1answer
181 views

Retina iMac not powering up after upgrades, one diagnostic LED

I did a few upgrades to a 2017 iMac, and unfortunately, upon reassembly, it isn't powering on. Here's a photo of it, display disconnected. In the second photo I've labelled things for reference. ...
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1answer
201 views

Macbook Pro keeps shutting down even when magsafe is plugged [duplicate]

I have MacBook Pro Retina Mid 2014 with Catalina installed. Initially my Mac is randomly shut down and later it shutdown every time I logged on to the Mac. It will display the desktop for a few ...
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33 views

Ipod classic 6th gen 120gb, Harddrive Diagnostic Interpretation

An iPod Classic shows this but it works fine, so I don't know if it's going to fail at some point in the future? Is a good option to buy it?
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1answer
72 views

What do Apple Diagnostics for Mac offer better than Apple Service Providers' tests? [closed]

Apple's embedded tests for Macs seem very shallow compared to those used by Apple Service Providers (AST2 tests). I know AST2 tests are very good at catching sensor failures (such as temperature, ...
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1answer
6k views

How to fix apple diagnostics error DEC500?

For a related question, I was trying to run apple Hardware Test (Apple diagnostics) on my Macbook Pro Retina. Mackbook details: I tried restarting with the D key pressed, with the intention of ...
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0answers
248 views

LG Ultrafine 4K stopped working after bootcamp driver installation

I had installed win10 with Bootcamp on a MacBook Pro 2019, then while my LG Ultrafine 4K was connected to the device via thunderbolt 3(USB-C) (and working properly) I installed (or update can remember)...
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492 views

(AHT) Anatomy of the Apple Hardware Test error code

I have these error codes from a Apple Hardware Test. After some research I found this and this which enabled me to translate the most essential facts behind them. However, some questions still remain, ...
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0answers
280 views

Internet Recovery instead of Hardware Diagnostics?

I'm trying to run hardware diagnostics on my mid-2012 MacBook Pro. Whenever I restart when holding D it restarts into Internet Recovery mode instead of Hardware Diagnostics mode. Is there any way to ...
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1answer
27 views

macbook pro 8,3 crashes

I have been having sporadic crashes for 2 weeks now; mouse simply disappears from screen while surfing the net and everything locks up; BUT, the restart causes the big problem: I get the pink screen ...
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1answer
53 views

Diagnostic & Usage On Apple Device

Hoping someone can help: I sent my apple device into a screen repair shop (had to drop off ipad and require to provide passcode) Can I use the diagnostic and usage to see what apps were opened during ...
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1answer
2k views

How to trigger sysdiagnose if my Volume Down button is broken?

I need to trigger sysdiagnose on my old iPhone 5S. However it looks like its physical VolumeDown button does not work, neither for volume nor for any combinations. How can I trigger sysdiagnose ...
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1answer
2k views

Where Exactly are Apple Diagnostics Results Stored on Disk

I know that on macOS you can access the last run Apple Diagnostics test in System Information, as seen in the image below. You can also access reference codes in the Terminal using system_profiler ...