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How to set Apple Silicon computers (M1-M5) to allow connections to Thunderbolt devices that use KEXT

 

  1. On the Apple menu, select [Shut Down] to shut down your Mac.
  2. After shutting down the system, wait 10 seconds and then press and hold down the power button on your Mac.
  3. Click [Options], then click [Continue].
    • If asked to select a volume to recover, select your startup disk, such as Macintosh HD. Then click Next.
    • If asked to select a user you know the password for, select the user, click Next, then enter the password they use to log in to this Mac.
  4. Click [Utilities], then select [Startup Security Utility].
  5. Select the startup disk you wish to use from those displayed, then click [Security Policy].
  6. After selecting “Reduced Security,” select “Allow user management of kernel extensions from identified developers” and click [OK].
    (We recommend making a note of the settings before making changes so that you can restore the previous security policy after you finish using the app.)
  7. Enter the administrator name and password, then click [OK].
  8. When setting of the security policy is complete, the following window is displayed.
  9. On the Apple menu, select [Restart] to restart your Mac.
  10. After restart, you are ready to install the Apogee software for your device!