Wed Apr 17, 2024 8:32 am
This USB port also exists inside the Ultrastudios; and in device terms is known as a 'service port'. I confess when I was scrambling to resurrect my bricked US 4K Mini, I didn't look at the manual either, since it only mentioned Decklinks, but seeing the only thing alive in Windows was, 'Blackmagic Ultrastudio 4K Mini Service Port'; and discovering a USB port once I'd disassembled it; and that this port was alive if you either connected with TB3 or USB cable, I figured it was for that.
I never tried it though (the USB port - it worked from TB3) but the instructions I outlined in the thread 'How to unbrick an Ultrastudio' should work for all devices, including Decklinks. So you can also recover a failed firmware update, by forcing it through the command line tool. Have a look there and give that a go - there are steps for both Windows and Mac.
There's definitely an issue, I believe, with DV 12.9, across many devices (though not all). BMD have been made aware of it. It would have been nice if one of the BMD folk could have responded here to the many similar posts, since it was released; since they seem able to respond to issues with a free camera app. No doubt it will get sorted when they all get back from NAB. Until then I recommend holding off on this version; at least that's what I'm doing.