![]() ![]() Note that a mouse or trackpad is not necessary, as keyboard shortcuts are available for all actions. The current Apple Magic Keyboard 2 and Magic Trackpad 2 use internal rechargeable batteries and a Lightning cable for recharging, and they can also be “connected” via Lightning during the tests, so I suggest plugging them both in if you have them. If you use a Bluetooth keyboard, mouse, and/or trackpad, I recommend temporarily using a USB mouse and keyboard. If you have an external optical drive (CD/DVD), be sure to disconnect it as well. ![]() Start off by disconnecting all external devices except the keyboard, mouse, display (if separate) and Ethernet adapter (if connected to the Internet via Ethernet). Apple Diagnostics works only on Macs introduced since June 2013, while Apple Hardware Test is used for older Macs. Let’s take a look at what we can use to diagnose issues with much newer Macs. Thus ends your Mac history lesson for today. The video below demonstrates most startup tones, as well as the increasingly crazy Chimes of Death: Related: Using macOS Sierra Disk Utility to Verify or Repair Disksīack in the early days of Macs, a diagnostics code would be displayed on the Mac startup screen under a “Sad Mac” icon (see image at top of this post), and later that was replaced by what we commonly referred to as the “Chimes of Death”, audible indications that all was not well with your Mac. When you go to an Apple Store for troubleshooting, chances are good that the staff will run one of these tools - Apple Diagnostics or Apple Hardware Test - to figure out what’s wrong, so you can save yourself a bit of time by diagnosing the problem ahead of your appointment and then letting the staff know what’s wrong. You can easily troubleshoot your Mac to see whether the problem is hardware related, and to do that, there’s no better way than using the tools built right into your Mac. However, when they start running slowly, crashing, or refusing to boot up, it’s time to figure out what’s going on. Macs are usually quite hardy, providing service for years without a problem. ![]()
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