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Hi ive just bought a Lacie 4TB Thunderbolt drive Trouble is its not being recognized on my 2012 15" Unibody as the port seems dead So for the last 3 days ive been trying to fix it with out success Ive read that the port wont work with Micro port firmware version 1.2.1 which mine is is there a way i can get to install the right firmware to get this to work I have tried this without success Thunderbolt Port not working correctly!! Has anyone had experience with this and was able to fix it Thanks
Under About This Mac - Hardware Report your Thunderbolt port info should show: Firmware Version: 25.1 Thats what my 2012 15" MacBook Pro has. Typically the OS installer will update the firmware when needed. But the order of upgrading your OS could be a factor as Apple sometimes messes up dropping the update in newer versions of installers. So I would first look at what it your current OS-X/macOS to see where you are. So what are you running now?
