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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].
  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!