Revisions to Why is Apple hardware test (AHT) not loading when pressing key D on system start?

add instruction to disable firmware password

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edit approved Mar 25, 2022 at 13:10

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Had the same problem listed here on my iMac Pro, and it turns out that if you have a firmware password set, then the hardware diagnostics system won't work at all, and there is no indication of this, but a nice fellow named Felix from Apple was able to suss that out with me.

To fix this,disable firmware password or find out if that's your issuecheck its status, you need to restart the system while holding down Cmd+R. Note: If a firmware password is set, a screen will show and ask you to input the password. Once you do that, you're greeted with some options for dealing with your OS, but you want to cancel that, and then you will be givenvarious options (either in a dialoglike Disk Utility or in the menu) to change firmware securityInstall macOS. You canIgnore them and follow the instructions herebelow:

https://www.makeuseof.com/how-to-set-up-firmware-password-mac/

Note: this only applies to Intel Macs AFAIK, since the Intel chips have firmware security built-in.

Select Utilities > Startup Security Utility from the menu bar

Select Enter macOS Password and enter your Mac’s admin password (for newer macs/macOS)

Select Turn Off Firmware Password

Enter the current firmware password

Exit the Startup Security Utility.

Open the Apple menu and select Restart to exit macOS Recovery.

Had the same problem listed here on my iMac Pro, and it turns out that if you have a firmware password set, then the hardware diagnostics system won't work at all, and there is no indication of this, but a nice fellow named Felix from Apple was able to suss that out with me.

To fix this, or find out if that's your issue, you need to restart the system while holding down Cmd+R. Once you do that, you're greeted with some options for dealing with your OS, but you want to cancel that, and then you will be given options (either in a dialog or in the menu) to change firmware security. You can follow the instructions here:

https://www.makeuseof.com/how-to-set-up-firmware-password-mac/

Note: this only applies to Intel Macs AFAIK, since the Intel chips have firmware security built-in.

Had the same problem listed here on my iMac Pro, and it turns out that if you have a firmware password set, then the hardware diagnostics system won't work at all, and there is no indication of this, but a nice fellow named Felix from Apple was able to suss that out with me.

To disable firmware password or check its status, you need to restart the system while holding down Cmd+R. Note: If a firmware password is set, a screen will show and ask you to input the password. Once you do that, you're greeted with various options like Disk Utility or Install macOS. Ignore them and follow the instructions below:

Select Utilities > Startup Security Utility from the menu bar

Select Enter macOS Password and enter your Mac’s admin password (for newer macs/macOS)

Select Turn Off Firmware Password

Enter the current firmware password

Exit the Startup Security Utility.

Open the Apple menu and select Restart to exit macOS Recovery.

Rollback to Revision 2

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edited Mar 25, 2022 at 12:40

nohillside ♦

104.5k
42
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275

Had the same problem listed here on my iMac Pro, and it turns out that if you have a firmware password set, then the hardware diagnostics system won't work at all, and there is no indication of this, but a nice fellow named Felix from Apple was able to suss that out with me.

To fix this, or find out if that's your issue, you need to restart the system while holding down Cmd+R. Once you do that, you're greeted with some options for dealing with your OS, but you want to cancel that, and then you will be given options (either in a dialog or in the menu) to change firmware security. You can follow the instructions here:

Select Utilities > Startup Security Utility from the menu bar

Select Enter macOS Password and enter your Mac’s admin password

Select Turn On Firmware Password

Enter your desired firmware password into both the New password and Verify fields.

Select Set Password and exit the Startup Security Utility.

Open the Apple menu and select Restart to exit macOS Recovery.

^{(taken from https://www.makeuseof.com/how-to-set-up-firmware-password-mac/)}https://www.makeuseof.com/how-to-set-up-firmware-password-mac/

Note: this only applies to Intel Macs AFAIK, since the Intel chips have firmware security built-in.

Had the same problem listed here on my iMac Pro, and it turns out that if you have a firmware password set, then the hardware diagnostics system won't work at all, and there is no indication of this, but a nice fellow named Felix from Apple was able to suss that out with me.

To fix this, or find out if that's your issue, you need to restart the system while holding down Cmd+R. Once you do that, you're greeted with some options for dealing with your OS, but you want to cancel that, and then you will be given options (either in a dialog or in the menu) to change firmware security:

Select Utilities > Startup Security Utility from the menu bar

Select Enter macOS Password and enter your Mac’s admin password

Select Turn On Firmware Password

Enter your desired firmware password into both the New password and Verify fields.

Select Set Password and exit the Startup Security Utility.

Open the Apple menu and select Restart to exit macOS Recovery.

^{(taken from https://www.makeuseof.com/how-to-set-up-firmware-password-mac/)}

Note: this only applies to Intel Macs AFAIK, since the Intel chips have firmware security built-in.

Had the same problem listed here on my iMac Pro, and it turns out that if you have a firmware password set, then the hardware diagnostics system won't work at all, and there is no indication of this, but a nice fellow named Felix from Apple was able to suss that out with me.

To fix this, or find out if that's your issue, you need to restart the system while holding down Cmd+R. Once you do that, you're greeted with some options for dealing with your OS, but you want to cancel that, and then you will be given options (either in a dialog or in the menu) to change firmware security. You can follow the instructions here:

https://www.makeuseof.com/how-to-set-up-firmware-password-mac/

Note: this only applies to Intel Macs AFAIK, since the Intel chips have firmware security built-in.

added 371 characters in body

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edited Mar 25, 2022 at 11:38

nohillside ♦

104.5k
42
222
275

Had the same problem listed here on my iMac Pro, and it turns out that if you have a firmware password set, then the hardware diagnostics system won't work at all, and there is no indication of this, but a nice fellow named Felix from Apple was able to suss that out with me.

To fix this, or find out if that's your issue, you need to restart the system while holding down Cmd+R. Once you do that, you're greeted with some options for dealing with your OS, but you want to cancel that, and then you will be given options (either in a dialog or in the menu) to change firmware security. You can follow the instructions here:

Select Utilities > Startup Security Utility from the menu bar

Select Enter macOS Password and enter your Mac’s admin password

Select Turn On Firmware Password

Enter your desired firmware password into both the New password and Verify fields.

Select Set Password and exit the Startup Security Utility.

Open the Apple menu and select Restart to exit macOS Recovery.

https://www.makeuseof.com/how-to-set-up-firmware-password-mac/^{(taken from https://www.makeuseof.com/how-to-set-up-firmware-password-mac/)}

Note: this only applies to Intel Macs AFAIK, since the Intel chips have firmware security built-in.

Had the same problem listed here on my iMac Pro, and it turns out that if you have a firmware password set, then the hardware diagnostics system won't work at all, and there is no indication of this, but a nice fellow named Felix from Apple was able to suss that out with me.

To fix this, or find out if that's your issue, you need to restart the system while holding down Cmd+R. Once you do that, you're greeted with some options for dealing with your OS, but you want to cancel that, and then you will be given options (either in a dialog or in the menu) to change firmware security. You can follow the instructions here:

https://www.makeuseof.com/how-to-set-up-firmware-password-mac/

Note: this only applies to Intel Macs AFAIK, since the Intel chips have firmware security built-in.

Had the same problem listed here on my iMac Pro, and it turns out that if you have a firmware password set, then the hardware diagnostics system won't work at all, and there is no indication of this, but a nice fellow named Felix from Apple was able to suss that out with me.

To fix this, or find out if that's your issue, you need to restart the system while holding down Cmd+R. Once you do that, you're greeted with some options for dealing with your OS, but you want to cancel that, and then you will be given options (either in a dialog or in the menu) to change firmware security: