How to Start Your Macbook Pro in Diagnostic Mode?

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Are you having trouble with your Macbook Pro? Are you trying to troubleshoot and find out what is wrong? Or do you just want to make sure that everything is running smoothly? If so, then starting your Macbook Pro in diagnostic mode can be a great way to do that.

In this blog post, we will discuss how you can start your Macbook Pro in diagnostic mode. This will allow you to run some diagnostic tests on the device and help determine any potential problems or issues that may be present.

First of all, you need to open the Terminal app. This is usually located in the Applications folder on your Mac. Once the Terminal is open, type “sudo nvram -x” into the command line and press enter. This will enable the diagnostic mode on your Macbook Pro.

Next, shut down your Macbook Pro by pressing and holding down the power button for a few seconds until it shuts off completely. Then unplug any connected peripherals such as USB drives or external hard drives so that there are no disruptions during the diagnostic test.

Now restart your computer while holding down Option+D at the same time. This will start an -based hardware test which will run through several different tests including memory tests, hard drive tests, video card tests, etc. The results of these tests should give you a better understanding of what might be causing any issues with your machine and help you decide how to fix them if needed.

Once the test is complete, restart your computer normally without holding down Option+D this time. Your Macbook should now be back up and running as normal but now it has been tested thoroughly so that there should be less chance of problems occurring in the future.

We hope this guide has helped show you how to start macbook pro in diagnostic mode and given you some useful information on troubleshooting potential issues with your device. If there are any other tips or advice that weren't covered here then feel free to leave us a comment below!

Starting a MacBook Pro in Terminal Mode

To start your MacBook Pro in Terminal mode, you will need to first shut it down. Once the computer is completely powered off, press and hold the Command (?) and R keys on your keyboard. Keep the keys pressed until you see the Apple logo appear on your screen. This will boot your computer into Recovery Mode.

Once in Recovery Mode, select “Terminal” from the top menu bar to open a command line interface window. You can now type in commands to control different aspects of your Mac, such as formatting drives or installing packages.

start macbook pro in diagnostic mode
Source: appleinsider.com

Diagnosing a Mac that Will Not Turn On

If your Mac won't turn on, you can run a diagnostic test by restarting your Mac while holding down Option+D. This will start an internet-based hardware test that will check the hardware components of your Mac to see if there are any issues. The test will run through a series of tests and report any issues it finds. If no problems are found, you should be able to continue using your Mac normally.

Factory Resetting a MacBook Pro That Won't Boot

If your MacBook Pro won't boot, you can try a factory reset. To do this, start by shutting down the MacBook and unplugging the power cable. Then, press and hold the Shift + Ctrl + Option/Alt keys and press the power button at the same time. Keep holding these keys until you hear a start-up chime or see an Apple logo on your screen. Once you do, release all the keys and the power button at the same time. Your MacBook Pro will then boot up into Recovery Mode where you can use macOS Utilities to reset your Mac to its factory settings.

Performing a Hard Reboot on a Mac

A hard reboot on a Mac can be done by pressing and holding the power button until your Mac shuts down. This should be done as a last resort if your Mac becomes unresponsive. It's important to note that any unsaved changes in open documents will be lost when doing a hard reboot. To prevent data loss, make sure you save your work before attempting to restart your Mac.

Troubleshooting Macbook Pro Not Turning On

It is possible that your Macbook Pro is not turning on due to a power issue. First, make sure your power cable is undamaged and plugged securely into your Mac and a working electrical socket. Additionally, check if the battery is charged by connecting it to another power source such as an external monitor or wall outlet. If that does not work, it could be a hardware issue and you may need to take it to an Apple Store or authorized technician for further diagnosis.

Resetting a Mac When Command +R Does Not Work

If Command +R isn't working, you'll need to use a different method to reset your Mac. First, make sure your Mac is powered off. Then, press and hold the power button until you see “Loading startup options”. Let go of the power button and you will be able to select Options > Continue which will open up Recovery mode. Once in Recovery mode, click on the “Disk Utility” option and select “Erase” from the menu bar. Here you can erase your hard drive and reinstall a fresh copy of macOS. After this process is completed, your Mac should be reset and ready for use.

Factory Resetting a Macbook Without Accessing It

To factory reset your Macbook without getting into it, you need to put it into Recovery Mode. This can usually be done by powering off the device and then holding Command + R keys while the device is booting up. Once in Recovery Mode, you will have the option to reinstall macOS or open Disk Utility, where you can erase and reformat your hard drive. Finally, follow the on-screen instructions to complete the reset process.

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Sanjeev Singh

Sanjeev is the tech editor at DeviceMAG. He has a keen interest in all things technology, and loves to write about the latest developments in the industry. He has a passion for quality-focused journalism and believes in using technology to make people's lives better. He has worked in the tech industry for over 15 years, and has written for some of the biggest tech blogs in the world. Sanjeev is also an avid photographer and loves spending time with his family.