Argh, mine just bricked on a firmware update. First I got the error with the QR code. Waited like it said to resolve. Played with Cura, Updated Cura, no joy...
Finally shut it off and when I turn it on I get the Linux screen of death...
So frustrating on a firmware update. Quite honestly we don't print that much and a huge reason we went with the Ultimaker was we didn't want a Project Printer... I get issues but firmware bricking a machine with no reasonable way to quickly/easily resolve... serious miss!
I am going to try the let it sit unplugged over night but not hopeful... argh!