G Speed Shuttle XL with Thunderbolt 3 -- Hard drive works well with MAC OS that predates Sierra but is recognized on Mac OS Sierra 10.12.6

G-Technology G-SPEED & G-SAFE
1

I tried to contact the phone number for customer support but the line keeps hanging up. This is an urgent matter where I am in a remote location and need assistance ASAP. I need to know the proper firmware and the driver to download for this model so that it can be recognized by my computer. Everything I’ve tried does not work. I have tried disk utility and the computer does not acknowledge that the hard drive is plugged in.

2

G-Speed Software Utility for 10.12+: (Not required for recognition but needed for management of the device) Software Utility

Mac drivers for TB3 support: TB3 Drivers