Hi,

I just run the Thunderbolt F/W update to 1.2 as offered by the AppStore Update. I have a 2014 MacPro with 2 Displays connected. In good faith I just confirmed to apply the update without much reading the fine print. The F/W update brought the system to a complete standstill. After 2 hours of waiting in the boot screen, I rebooted the system manually (5 secs power button). One of the Thunderbolt displays first just flickered, then decided to completely die. The System report says: unknown device in the Thunderbolt section. The 2nd display hasn't been updated during this procedure.





How can the F/W of the 'dead' display be re-installed? I also tried to connect it to a MacBook pro. Same result. The display is entirely black.





Any help or suggestion is much appreciated. Thanks!