Run apple diagnostics how to#
Run apple diagnostics Patch#

Run apple diagnostics Patch#

This could be good news as it suggests OS X Recovery will be able to patch most common problems – just launch Disk Utility from within that petition and fix your disk. You may have expected to find a hardware problem but none has been found. If you have an identified hardware issue then the best thing you can do is use this system to make a call to Apple Support, as that’s a good way to find out more about the problem (even if you can’t afford to fix it immediately). VFD001-VFD005: This is the one that I’ve seen most often, it means “Display issues” have been identified. NDD001: USB hardware isues (NDL001 indicates Bluetooth hardware problems). I’ll be honest, there are plenty of these codes – you’ll find a complete list right here at Apple Support, but here are ten to get started with:ĬNW001-CNW006: Wi-Fi hardware problems (or CNW007-CNW008, which means now Wi-Fi hardware has been detected, which may also be a problem if you think you have such hardware). What are the other most useful Apple Diagnostics codes? That’s good news as it suggests the problem you may be experiencing is not hardware-based. The diagnostics code every Mac user should want to see is ADP000. What is the most important Apple Diagnostics code? If you want to restart your Mac just press the R key (or S to Shut Down).

Run apple diagnostics how to#

You can send the error codes to Apple to access details about these problems and how to repair them. If you choose to do so your Mac will restart in OS X Recovery and Safari will launch Apple’s support pages. You can send any error codes you receive to Apple using the Get Started link that appears.

How do I use Apple Diagnostics information? When the test is complete any issues will be described and error code(s) displayed. A Checking Your Mac progress bar will appear for the duration of the test, which takes up to five minutes. Keep holding those keys down until Apple Diagnostics appears, once you get online the test will begin. Or depress the Option-D keys to access the tools online. Shut down the Mac and restart as follows: Start up and immediately hold the D key. You should also make sure you have the name and password for your Wi-Fi network if that’s how you get online. When launching Apple Diagnostics you should disconnect all peripherals with the exception of the keyboard, mouse, monitor and Ethernet (if used).