How to check your Mac’s hardware, interpret the results, deal with problems, and tackle tricky intermittent faults.
AHT
From hardware diagnostics to pmset and resetting the SMC, all you need to know about diagnosing wake and sleep problems.
What should you do when you try to restart in Diagnostics Mode and can’t? And how to check and restore a Recovery partition.
When should you reset your SMC and NVRAM, repair permissions, install a Combo update, or re-install the whole of macOS?
Even if you don’t connect it, a Mac’s Ethernet port is vital to authorise it to the App Store and more. Here’s how to cope if it goes missing.
As macOS gets more complex, diagnostic and control tools provided by Apple have become less accessible. This makes macOS harder to diagnose and support.
How to run Apple’s diagnostic software to work out whether your Mac has a hardware fault – and how to interpret its error codes.
What to do when your Mac won’t start up, and is acting dead, or at least mortally wounded.
You know, from soon after getting up, that some days are not going to be easy. Yesterday was […]
The Eclectic Light Company 