Warning: it died for me after update.
Rough translation: "Failed to load Android system. Data possibly damaged. If you'll see this message again try to reset device and remove all user data.
How it works: it loads android at first, but when I unlock it starts to reboot and loads into this screen.
Available buttons:
1) try again
2) reset settings
Haven't tried 2nd yet, wanna save my photos and other data first somehow
UPD: well, it doesn't work even after picking "settings reset". Any idea what should I do?
UPD1: after 1 more reset it works, I think. It also offered to restore my 6h ago backup from google cloud. "Finishing setup" still goes, probably I'll get my photos back, but I don't see them yet.