Questions tagged [apple-diagnostics]

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"Hash mismatch" immediately after OS install

This MacBook Pro has had a lot of problems since purchase, the latest being the second item in the image. Apple Care people and the hardware diagnostics say the hardware is fine, but I don't believe ...
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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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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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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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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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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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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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(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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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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2 votes
1 answer
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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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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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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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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 ...
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