Thanks for the heads up. I already had the guide from @ActionableMango bookmarked. I was not aware the nvflash version mattered. I should have the card tomorrow. I have Windows 10 via Bootcamp. Will the flashing guide work in Windows 10? Obviously it was likely made for Windows 7.
I'm not aware of any reason it shouldn't. I did it on Windows 8 because I had no intention of keeping Bootcamp on my Mac and 8 is the most recent retail DVD I have.