I would try first deleting all the drivers and software related to the G-Studio.
Next, boot up in recovery mode and change the security settings.
To change the level of security on your startup disk:
- Shut down the Mac.
- Press and hold the power button until you see “Loading startup options”
- Click Options.
- Click Continue. …
- In the menu bar at the top, Select Utilities > Startup Security Utility.
- Select the startup disk. …
- Click Security Policy.
- Select Reduced Security.
I also have a G-Studio 12 Tb and here is a link to instructions that worked for me…
If it works, let me know. If you had to alter any steps in the instructions, I’ll update the document. I am betting that LOTS of people are having problems with this.
